redact-secret · Report

Legacy API key (bare UUID)

Pre-2024-04 unprefixed 8-4-4-4-12 hex UUID token, still valid until regenerated; recognized only beside a same-line heroku keyword.

Heroku
Detectors: heroku-api-key-legacy
Run 2026-10-07
Mode published · redact-secret 0.1.0-beta.14

All providers

Dossier verdictReady
Dossier evidence levelT2 · Tool-corroborated
Dossier researched2026-09-24

redact-secret#312 (product PR #675). Scored as policy (no value grammar), like twilio:auth-token. The later HRKU-<uuid> (41 characters) and HRKU-AA (65) generations are provider-documented and belong to heroku:oauth-access-token (#209, #232). An app id on a heroku-named line is a public-id control; both keyword-gated peers flag it, and the product has excluded identifier-shaped keys since redact-secret#714.

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
Researched2026-09-24

3 events in the review history: 2 observed, 1 reviewed. Latest: observed on 2026-09-24 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

Shape not recorded.

Format facts

Tool corroborated · tool-corroboration · current · observed 2026-09-17
Pinned scanner rules are consistent with the contract grammar (2 artifacts: gitleaks 8.30.1; trufflehog 3.97.4).
- gitleaks/gitleaks @ v8.30.1: config/gitleaks.tomlscanner-rule-source · last read 2026-10-04 · latest outcome read · supports gitleaks 8.30.1: gitleaks.toml
- trufflesecurity/trufflehog @ v3.97.4: pkg/detectors/heroku/v1/heroku.goscanner-rule-source · last read 2026-09-17 · latest outcome read · supports trufflehog 3.97.4: heroku/v1
Provider documented · field-shape · current · observed 2026-09-24
shape: bare 8-4-4-4-12 lowercase-hex UUID (tokens granted before 2024-04-01), valid until regenerated
- devcenter.heroku.com/changelog-items/2842provider-documentation · last read 2026-09-24 · latest outcome read · supports shape: bare 8-4-4-4-12 lowercase-hex UUID (tokens granted before 2024-04-01), valid until regenerated
Tool corroborated · field-context-gate · current · observed 2026-09-17
context gate: no marker of its own: scored as policy, only beside a same-line heroku keyword
- gitleaks/gitleaks @ v8.30.1: config/gitleaks.tomlscanner-rule-source · last read 2026-10-04 · latest outcome read · supports context gate: no marker of its own: scored as policy, only beside a same-line heroku keyword
- trufflesecurity/trufflehog @ v3.97.4: pkg/detectors/heroku/v1/heroku.goscanner-rule-source · last read 2026-09-17 · latest outcome read · supports context gate: no marker of its own: scored as policy, only beside a same-line heroku keyword
Provider documented · field-later-generations · current · observed 2026-09-24
later generations: HRKU-<uuid> (41 characters, 2024-04-01 to 2025-04-23) and HRKU-AA + 58 (65 characters) are provider-documented generations of the same credential class; both belong to the current OAuth family (heroku-api-key, #209), not this contract
- devcenter.heroku.com/articles/oauthprovider-documentation · last read 2026-09-24 · latest outcome read · supports later generations: HRKU-<uuid> (41 characters, 2024-04-01 to 2025-04-23) and HRKU-AA + 58 (65 characters) are provider-documented generations of the same credential class; both belong to the current OAuth family (heroku-api-key, #209), not this contract
- devcenter.heroku.com/changelog-items/3175provider-documentation · last read 2026-09-24 · latest outcome read · supports later generations: HRKU-<uuid> (41 characters, 2024-04-01 to 2025-04-23) and HRKU-AA + 58 (65 characters) are provider-documented generations of the same credential class; both belong to the current OAuth family (heroku-api-key, #209), not this contract
Unresolved · field-hex-case · current · observed 2026-09-24
hex case: provider examples are lowercase; gitleaks and semgrep accept uppercase; whether Heroku ever issued uppercase is unknown, so no fixture asserts either way
- github.com/redact-secret/redact-secret-benchmarks/issues/232other · last read 2026-09-24 · latest outcome read · supports hex case: provider examples are lowercase; gitleaks and semgrep accept uppercase; whether Heroku ever issued uppercase is unknown, so no fixture asserts either way
Unresolved · field-40-hex-shape · current · observed 2026-09-24
40-hex shape: devcenter.heroku.com/articles/authentication shows a 40-character lowercase-hex token of undated era; no fixture uses or excludes it
- devcenter.heroku.com/articles/authenticationprovider-documentation · last read 2026-09-24 · latest outcome read · supports 40-hex shape: devcenter.heroku.com/articles/authentication shows a 40-character lowercase-hex token of undated era; no fixture uses or excludes it
Unresolved · field-uuid-shaped-siblings · current · observed 2026-09-24
UUID-shaped siblings: OAuth client secrets and refresh tokens are also bare UUIDs today; they are secrets, so none is used as a benign control
- devcenter.heroku.com/articles/oauthprovider-documentation · last read 2026-09-24 · latest outcome read · supports UUID-shaped siblings: OAuth client secrets and refresh tokens are also bare UUIDs today; they are secrets, so none is used as a benign control
Unresolved · dossier-research · current · observed 2026-09-24
Legacy dossier research (verdict ready, tier T2) cited 2 sources; the dossier does not attribute sources to individual properties.
- devcenter.heroku.com/changelog-items/2842provider-documentation · last read 2026-09-24 · latest outcome read · supports Cited by the legacy dossier research for this family
- devcenter.heroku.com/changelog-items/3175provider-documentation · last read 2026-09-24 · latest outcome read · supports Cited by the legacy dossier research for this family
Unresolved · taxonomy-sources · current · observed 2026-09-24
The legacy taxonomy lists 2 sources for this family. The taxonomy records no date; the dossier researchedAt is used as the observed-at date.
- devcenter.heroku.com/changelog-items/2842provider-documentation · last read 2026-09-24 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy
- devcenter.heroku.com/changelog-items/3175provider-documentation · last read 2026-09-24 · 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: an unprefixed lowercase 8-4-4-4-12 hex UUID (36 characters), granted before 2024-04-01. Heroku states no grammar in prose; the shape is one changelog example.
Basis: T2. Provider changelog 2842 (example), gitleaks, trufflehog and Nosey Parker rules, which all gate on a heroku keyword. Hex case is disputed (gitleaks and Semgrep accept uppercase; Nosey Parker does not).
Issuance: cannot be reissued; new tokens are prefixed. Not observable.
Contract in core: detector-families.md (heroku_api_key_legacy, confidence-gated).

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: 63
Left readable: 0
Redacted too much: 0
False alarms: 0

63 fixtures: 42 must stay quiet, 21 record project policy. See every row

redact-secret fixture counts by evidence level
Evidence level	Fixtures	Left readable	Too much	False alarms
T2Tool-corroborated	17	0	0	0
T3Project policy	45	0	0	0
T0Pending review	1	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	False alarms
flare-redactRuntime library · 1.6.1 · Published npm package · secrets-only (pii, generic_assignment disabled) · JavaScript engineNo rule maps to it	63	20	1	0
gitleaksRepository scanner · 8.30.1 · Directory scan · default rules1 rule targets it	63	10	0	8
redact-secretProduct measured here · 0.1.0-beta.14 · Published npm package · default detectors1 detector mapped	63	0	0	0
trufflehogRepository scanner · 3.97.4 · Filesystem scan · verification disabled1 rule targets it	63	3	1	12

Benchmark dossier questions

Things the sources do not settle. They are listed so nobody reads them as settled.

Open caveat: Provider shows the bare UUID only as a changelog example; no marker separates it from Heroku ids, so it is claimable only beside a heroku keyword. No legacy token can be newly issued.

Looks like it, but isn't

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

Collisions: structurally identical to Heroku app, release, request and user ids and to current UUID-shaped secrets (client secret, refresh token), so a same-line keyword is the only gate. An app id on a HEROKU_APP_ID line is the recorded false-positive control.

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
gitleaks · rules 8.30.1	`heroku-api-key`	heroku keyword + a UUID
openredaction · rules 1.1.5	`HEROKU_API_KEY`	a bare UUID
trufflehog · rules 3.97.4	`heroku/v1`	heroku keyword + a UUID

No rule maps to this family in flare-redact.

Find

Evidence level

Scanners

63 of 63 rows

Fixtures in this family

63 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 Legacy API key (bare UUID)
Fixture	Kind and evidence	redact-secret
`heroku-api-key-legacy-app-url-path-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-app-uuid-json-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-apps-info-json-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-auth-token-output`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-authorizations-info`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-authorizations-list-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-ci-debug-echo`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-compose-env`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-deploy-action`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-deploy-config-json`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-deploy-log`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-env`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-export`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-git-config-remote`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-git-remote`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-git-remote-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-handoff-note`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-inline-env`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-keyword-context-bare`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-keyword-context-quoted`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-keyword-context-unicode-crlf`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-netrc-multi-line`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-netrc-single-line`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-oauth-client-id-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-other-git-host-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-platform-api`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-platform-api-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-platform-api-ruby`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-public-id`heroku · benign-lookalike	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-release-id-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-releases-path-near-miss`heroku · format-near-miss	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-router-request-id-public-id`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-router-request-id-public-id-public-identifier`heroku · public-identifier	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-terraform-provider`heroku · documented-format-literal	Project policyT3 · Project policy	Redacted
`heroku-api-key-legacy-zero-uuid-placeholder`heroku · documentation-placeholder	Must not flagT3 · Project policy	Quiet
`uuid-under-generic-api-key-name`authored-prefixless-key-shape-discrimination · uuid-under-credential-name-without-provider-context	Pending reviewT0 · Pending	Unscored
`heroku-api-key-legacy-actions-secret-reference`heroku · templated-reference	Must not flagT3 · Project policy	Quiet
`heroku-api-key-legacy-buildpack-digest-encoded-value`heroku · benign-encoded-value	Must not flagT2 · Tool-corroborated	Quiet
`heroku-api-key-legacy-client-id-row-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-command-substitution-reference`heroku · templated-reference	Must not flagT3 · Project policy	Quiet
`heroku-api-key-legacy-compose-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-deploy-action-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-deploy-log-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-env-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-export-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-handoff-note-context-twin`heroku · missing-context-marker	Must not flagT3 · Project policy · twin	Quiet
`heroku-api-key-legacy-hrku-migration-note-prose`heroku · prose-mention	Must not flagT3 · Project policy	Quiet
`heroku-api-key-legacy-keyword-context-bare-twin`heroku · wrong-length	Must not flagT2 · Tool-corroborated · twin	Quiet
`heroku-api-key-legacy-keyword-context-quoted-twin`heroku · wrong-length	Must not flagT2 · Tool-corroborated · twin	Quiet
`heroku-api-key-legacy-keyword-context-unicode-crlf-twin`heroku · wrong-length	Must not flagT2 · Tool-corroborated · twin	Quiet

Sources

Researched 2026-09-24.

Documentation and code

devcenter.heroku.com/changelog-items/2842
devcenter.heroku.com/changelog-items/3175

Research log

redact-secret/redact-secret-benchmarks#232Research issue

Other Heroku families

OAuth access token (HRKU-prefixed)