redact-secret · Report

OAuth client secret

GOCSPX- + exactly 28 [A-Za-z0-9_-]: the client secret of a Google OAuth client.

Google
Detectors: google-oauth-client-secret
Run 2026-10-07
Mode published · redact-secret 0.1.0-beta.14

Dossier verdictReady
Dossier evidence levelT2 · Tool-corroborated
Dossier researched2026-09-29

Registry detector google-oauth-client-secret since redact-secret#1029 (registry pin 4fb7882). Contract in benchmarks/lib/beta8/1012b.ts from the #1012 research record: T2 (Google-authored osv-scalibr rule, noseyparker and CredSweeper; Google documents no format).

New pipelineAuthority

Built from the new pipeline

The new pipeline is the authority for credential qualification. These numbers are read from the qualification view derived from the official credential-eval run of the public-evidence-snapshot population. The regression and policy populations keep their own counts on the qualification pages and are not added in here.

Authority: new
Population: public-evidence-snapshot
Engine: credential-eval 0.1.0-alpha.16
Evidence: snapshot-2026.10.06.4
Run: sha256:4bec6e539482…
Recorded: 2026-10-07
Authorised for: @redact-secret/core@0.1.0-beta.14

Maintainer-reviewed (independent review pending)

598 fixtures of the 7,041 in evidence release snapshot-2026.10.06.4 carry this label. They are counted in the numbers on this page.

Passed the project’s own verification (source evidence, automated checks, recorded counter-arguments); not yet independently reviewed.

OpenRedaction default (all patterns): not measured in this run (optional)

The default (all-pattern) profile is slow and noisy for credential evaluation: personal data and resource identifiers dominate its findings, and its last official measurement took 7 minutes of scanner time on a population the credential profile scans in seconds (its methods run takes 40+ minutes), so it is a manual measurement and never blocks other scanners or core verification (#763). Its earlier results stay as history with their run identity; the credential profile is a separate scanner, never spliced with it.

Last measurement: policy-corpus@linux-x64 (configuration sha256:2451ce7bf380), public-evidence-snapshot+methods@linux-x64 (configuration sha256:d47d081ce5fb), public-evidence-snapshot@linux-x64 (configuration sha256:2451ce7bf380), regression-corpus@linux-x64 (configuration sha256:2451ce7bf380) · engine 0.1.0-alpha.5 · recorded 2026-10-05 · retained record, no longer listed by the run registry. It stays labelled with that run identity and is never combined with another profile or another run.

Open the qualification page for this pointer

OpenRedaction credential profile (33 types): not measured in an official run (local exploratory diagnostics only: see ADR)

The credential profile is the comparison profile chosen in docs/decisions/2026-10-06-choose-the-openredaction-credential-bearing-profile-as-the-comparison-scanner.md. It is optional in the official run class because no pinned engine configuration measures it yet: making it required would refuse every official view until the owner approves the one profile-only run. Its own history starts with that run; nothing of the default's is reused for it.

No earlier measurement of it is recorded. Nothing is shown in its place.

Official measurement: pending: requires owner approval (one profile-only run; see the decision).

Open the qualification page for this pointer

Every population and its qualification

Research record

From credential-evidence snapshot-2026.10.06.4 · records at 77ce761 · schema 1.8.0. It describes the research on the format, not what any scanner or the product does, and not a support status.

Review stateDraft, not reviewed
Format revision1 · current
ResearchResearched
Researched2026-09-29

3 events in the review history: 2 observed, 1 reviewed. Latest: observed on 2026-09-29 by automation, project maintainer. Project-maintained review is not independent validation. The family record at this release.

Format

Provider format research from credential-evidence snapshot-2026.10.06.4 · records at 77ce761 · schema 1.8.0.

What it looks like

Descriptive pattern: ^GOCSPX-[A-Za-z0-9_-]{28}$

Parts are shown as recorded. Evidence classes belong to the facts below; no class is assigned to a part.

Format facts

Tool corroborated · tool-corroboration · current · observed 2026-09-29
Pinned scanner rules are consistent with the contract grammar (3 artifacts: CredSweeper; google/osv-scalibr (Google-authored, R2 not applied); noseyparker).
- google/osv-scalibr @ 5ab8022c6d67ff99d91d9750f2456ed9549fe8cb: veles/secrets/gcpoauth2client/detector.goscanner-rule-source · last read 2026-09-29 · latest outcome read · supports google/osv-scalibr (Google-authored, R2 not applied): gcpoauth2client: \bGOCSPX-[a-zA-Z0-9_-]{28} (exactly 28 since 2025-12-03) · #L51-L58
- praetorian-inc/noseyparker @ 2e6e7f36ce36619852532bbe698d8cb7a26d2da7: crates/noseyparker/data/default/builtin/rules/google.ymlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports noseyparker: \b(GOCSPX-[a-zA-Z0-9_-]{28})(?:[^a-zA-Z0-9_-]|$) · #L17-L29
- Samsung/CredSweeper @ f21ab2f2553eea288a72273b9658cd297ab1d11f: credsweeper/rules/config.yamlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports CredSweeper: GOCSPX-[0-9A-Za-z_-]{28}(?![0-9A-Za-z_-]) · #L463-L475
Tool corroborated · field-prefix · current · observed 2026-09-29
prefix: GOCSPX- (T2; T1 only if R2 is applied to the Google-authored rule.)
- google/osv-scalibr @ 5ab8022c6d67ff99d91d9750f2456ed9549fe8cb: veles/secrets/gcpoauth2client/detector.goscanner-rule-source · last read 2026-09-29 · latest outcome read · supports prefix: GOCSPX- · #L51-L58
- googleworkspace/cli @ a3768d0e82ad83cca2da97724e46bea4ff0e6dbd: crates/google-workspace-cli/src/oauth_config.rsscanner-rule-source · last read 2026-09-29 · latest outcome read · supports GOCSPX-... placeholder (R4, prefix only) · #L26
- praetorian-inc/noseyparker @ 2e6e7f36ce36619852532bbe698d8cb7a26d2da7: crates/noseyparker/data/default/builtin/rules/google.ymlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports prefix: GOCSPX- · #L17-L29
- Samsung/CredSweeper @ f21ab2f2553eea288a72273b9658cd297ab1d11f: credsweeper/rules/config.yamlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports prefix: GOCSPX- · #L463-L475
Tool corroborated · field-body · current · observed 2026-09-29
body: exactly 28 [A-Za-z0-9_-] (35 in all)
- google/osv-scalibr @ 5ab8022c6d67ff99d91d9750f2456ed9549fe8cb: veles/secrets/gcpoauth2client/detector.goscanner-rule-source · last read 2026-09-29 · latest outcome read · supports narrowed from {10,40} to exactly 28 on 2025-12-03 · #L51-L58
- praetorian-inc/noseyparker @ 2e6e7f36ce36619852532bbe698d8cb7a26d2da7: crates/noseyparker/data/default/builtin/rules/google.ymlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports body: exactly 28 [A-Za-z0-9_-] (35 in all) · #L17-L29
- Samsung/CredSweeper @ f21ab2f2553eea288a72273b9658cd297ab1d11f: credsweeper/rules/config.yamlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports body: exactly 28 [A-Za-z0-9_-] (35 in all) · #L463-L475
Tool corroborated · field-boundary · current · observed 2026-09-29
boundary: not [A-Za-z0-9_-] on either side
- praetorian-inc/noseyparker @ 2e6e7f36ce36619852532bbe698d8cb7a26d2da7: crates/noseyparker/data/default/builtin/rules/google.ymlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports boundary: not [A-Za-z0-9_-] on either side · #L17-L29
- Samsung/CredSweeper @ f21ab2f2553eea288a72273b9658cd297ab1d11f: credsweeper/rules/config.yamlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports boundary: not [A-Za-z0-9_-] on either side · #L463-L475
Provider documented · field-public-client-id · current · observed 2026-09-29
public-client-id: the OAuth client id (<digits>-<id>.apps.googleusercontent.com) is public, never this family
- developers.google.com/identity/protocols/oauth2provider-documentation · last read 2026-09-29 · latest outcome read · supports public-client-id: the OAuth client id (<digits>-<id>.apps.googleusercontent.com) is public, never this family
- redact-secret/redact-secret @ 4fb78827f1ddf5b3106f25130ca510a836ada186: docs/audits/evidence/1012/google-oauth2-credential.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports excluded shapes
Unresolved · field-sibling-tokens · current · observed 2026-09-29
sibling-tokens: ya29. access tokens and 1// refresh tokens are separate credentials whose grammar is BLOCKED (Not claimed; neither a positive nor a control.)
- redact-secret/redact-secret @ 4fb78827f1ddf5b3106f25130ca510a836ada186: docs/audits/evidence/1012/google-oauth2-credential.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports ya29. and 1// exact missing evidence
Tool corroborated · field-peer-lag · current · observed 2026-09-29
peer-lag: no GOCSPX- rule in gitleaks 8.30.1; trufflehog 3.97.4 googleoauth2 reads access tokens, not client secrets
- gitleaks/gitleaks @ v8.30.1: config/gitleaks.tomlscanner-rule-source · last read 2026-10-04 · latest outcome read · supports no GOCSPX rule
- trufflesecurity/trufflehog @ v3.97.4: pkg/detectorsscanner-rule-source · last read 2026-09-29 · latest outcome read · supports googleoauth2 access-token detector
Unresolved · listed-references · current · observed 2026-09-29
The legacy contract lists 12 references without stating which property each supports.
- developers.google.com/identity/protocols/oauth2provider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- google/osv-scalibr @ 5ab8022c6d67ff99d91d9750f2456ed9549fe8cb: veles/secrets/gcpoauth2client/detector.goscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #L51-L58
- googleworkspace/cli @ a3768d0e82ad83cca2da97724e46bea4ff0e6dbd: crates/google-workspace-cli/src/oauth_config.rsscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #L26
- praetorian-inc/noseyparker @ 2e6e7f36ce36619852532bbe698d8cb7a26d2da7: crates/noseyparker/data/default/builtin/rules/google.ymlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #L17-L29
- redact-secret/redact-secret @ 4fb78827f1ddf5b3106f25130ca510a836ada186: docs/audits/evidence/1012/google-oauth2-credential.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/860issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #issuecomment-5871306275
- github.com/redact-secret/redact-secret/issues/1012issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret-benchmarks/issues/528issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/1029issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- redact-secret/redact-secret @ 4fb78827f1ddf5b3106f25130ca510a836ada186: docs/audits/evidence/1012/README.mdproject-research-note · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- Samsung/CredSweeper @ f21ab2f2553eea288a72273b9658cd297ab1d11f: credsweeper/rules/config.yamlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #L463-L475
- support.google.com/cloud/answer/15549257other · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
Tool corroborated · dossier-research · current · observed 2026-09-29
Legacy dossier research (verdict ready, tier T2) cited 4 sources; the dossier does not attribute sources to individual properties.
- google/osv-scalibr @ 5ab8022c6d67ff99d91d9750f2456ed9549fe8cb: veles/secrets/gcpoauth2client/detector.goscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Cited by the legacy dossier research for this family · #L51-L58
- praetorian-inc/noseyparker @ 2e6e7f36ce36619852532bbe698d8cb7a26d2da7: crates/noseyparker/data/default/builtin/rules/google.ymlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Cited by the legacy dossier research for this family · #L17-L29
- redact-secret/redact-secret @ 4fb78827f1ddf5b3106f25130ca510a836ada186: docs/audits/evidence/1012/google-oauth2-credential.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Final research evidence recorded by the legacy dossier
- Samsung/CredSweeper @ f21ab2f2553eea288a72273b9658cd297ab1d11f: credsweeper/rules/config.yamlscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Cited by the legacy dossier research for this family · #L463-L475
Unresolved · taxonomy-sources · current · observed 2026-09-29
The legacy taxonomy lists 2 sources for this family. The taxonomy records no date; the dossier researchedAt is used as the observed-at date.
- google/osv-scalibr @ 5ab8022c6d67ff99d91d9750f2456ed9549fe8cb: veles/secrets/gcpoauth2client/detector.goscanner-rule-source · last read 2026-09-29 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy · #L51-L58
- redact-secret/redact-secret @ 4fb78827f1ddf5b3106f25130ca510a836ada186: docs/audits/evidence/1012/google-oauth2-credential.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy

Open questions

No open question is recorded for this revision.

Benchmark dossier notes

From the provider dossier, as written. The evidence level above says how well the format is backed; a fact the dossier does not record is not shown.

Shape: GOCSPX- followed by exactly 28 characters from letters, digits, underscore and hyphen, 35 in all.
Basis: T2. Google's own osv-scalibr rule (narrowed to exactly 28 by a Google engineer on 2025-12-03), noseyparker and CredSweeper agree: three dated references, three owners, two classes. Google documents no format. The #1012 research record (google-oauth2-credential.md) is READY-T2, and T1 only if the maintainer applies R2 to the Google-authored rule.
Contract in core: detector-families.md.

In this benchmark

Fixture rows on the current run. Counts are for redact-secret in published · redact-secret 0.1.0-beta.14 mode.

Fixtures: 40
Left readable: 0
Redacted too much: 0
False alarms: 0

40 fixtures: 16 expect a redaction, 24 must stay quiet. See every row

redact-secret fixture counts by evidence level
Evidence level	Fixtures	Left readable	Too much	False alarms
T2Tool-corroborated	30	0	0	0
T3Project policy	10	0	0	0

Every scanner on the same fixtures

In run order. Counts are what each scanner recorded on this family's fixtures, whichever rules it has; a scanner with no rule for the family has nothing to report on it.

Counts per scanner on this family's fixtures
Scanner	Fixtures	Left readable	Too much
flare-redactRuntime library · 1.6.1 · Published npm package · secrets-only (pii, generic_assignment disabled) · JavaScript engineNo rule maps to it	40	15	1
gitleaksRepository scanner · 8.30.1 · Directory scan · default rulesNo rule maps to it	40	7	0
redact-secretProduct measured here · 0.1.0-beta.14 · Published npm package · default detectors1 detector mapped	40	0	0
trufflehogRepository scanner · 3.97.4 · Filesystem scan · verification disabled1 rule targets it	40	16	0

Looks like it, but isn't

Values the dossier records as resembling this credential without being one.

Collisions: the OAuth client ID is public. Unprefixed pre-GOCSPX- secrets are caught only by a client_secret name.

Scanner rules for this family

Mapped by hand (reviewed 2026-09-30) from each scanner's pinned rule file, never from what a scanner found on the fixtures.

Peer scanner rules that target this family
Scanner	Rule	What the rule matches
trufflehog · rules 3.97.4	`gcpapplicationdefaultcredentials`	application default credentials JSON with a client_secret

No rule maps to this family in flare-redact, gitleaks, openredaction.

Find

Evidence level

Scanners

40 of 40 rows

Fixtures in this family

40 rows, redact-secret's outcome on each. Rows that need a look come first (0), then the rest in corpus order. Choose "Every scanner" to see each scanner's outcome for the same rows.

Fixtures in OAuth client secret
Fixture	Kind and evidence	redact-secret
`google-oauth-client-secret-bare-prose`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-bearer-header`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-chat-paste`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-dotenv`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-export`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-flask-config`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-json-api-key`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-json-client-file`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-json-token`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-json-web-client-file`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-key-shape-bare`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-key-shape-quoted`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-key-shape-unicode-crlf`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-sdk-kwarg`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-token-curl`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-x-api-key-header`google · documented-format-literal	Must redactT2 · Tool-corroborated	Redacted
`google-oauth-client-secret-actions-secret-reference`google · templated-reference	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-angle-placeholder`google · documentation-placeholder	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-body-27-twin`google · wrong-length	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-body-29-twin`google · wrong-length	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-client-id-public-id`google · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`google-oauth-client-secret-consent-url-public-id`google · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`google-oauth-client-secret-console-guidance-prose`google · prose-mention	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-dot-in-body-twin`google · wrong-alphabet	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-ellipsis-placeholder`google · documentation-placeholder	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-env-reference-reference`google · templated-reference	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-environ-lookup-reference`google · templated-reference	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-label-prose`google · benign-lookalike	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-leading-glue-twin`google · boundary-violation	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-lowercase-prefix-twin`google · prefix-near-miss	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-mask`google · benign-lookalike	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-prefix-only`google · benign-lookalike	Must not flagT2 · Tool-corroborated	Quiet
`google-oauth-client-secret-prefix-without-hyphen-twin`google · prefix-near-miss	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-project-id-public-id`google · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`google-oauth-client-secret-reference`google · benign-lookalike	Must not flagT3 · Project policy	Quiet
`google-oauth-client-secret-short-body`google · benign-lookalike	Must not flagT2 · Tool-corroborated	Quiet
`google-oauth-client-secret-truncated-marker-twin`google · prefix-near-miss	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-truncated-near-miss`google · format-near-miss	Must not flagT2 · Tool-corroborated	Quiet
`google-oauth-client-secret-underscore-separator-twin`google · prefix-near-miss	Must not flagT2 · Tool-corroborated · twin	Quiet
`google-oauth-client-secret-x-run-placeholder`google · documentation-placeholder	Must not flagT3 · Project policy	Quiet

Sources

Researched 2026-09-29.

Documentation and code

github.com/google/osv-scalibr/blob/5ab8022c6d67ff99d91d9750f2456ed9549fe8cb/veles/secrets/gcpoauth2client/detector.go#L51-L58
github.com/redact-secret/redact-secret/blob/4fb78827f1ddf5b3106f25130ca510a836ada186/docs/audits/evidence/1012/google-oauth2-credential.md
github.com/praetorian-inc/noseyparker/blob/2e6e7f36ce36619852532bbe698d8cb7a26d2da7/crates/noseyparker/data/default/builtin/rules/google.yml#L17-L29
github.com/Samsung/CredSweeper/blob/f21ab2f2553eea288a72273b9658cd297ab1d11f/credsweeper/rules/config.yaml#L463-L475

Research log

redact-secret/redact-secret#1012Research issue
redact-secret/redact-secret#1029Research issue
redact-secret/redact-secret-benchmarks#528Research issue
Final evidence, pinned to a commit/redact-secret/redact-secret/blob/4fb78827f1ddf5b3106f25130ca510a836ada186/docs/audits/evidence/1012/google-oauth2-credential.md