Resolve dependency advisories: cowlib (retire the 43971 ignore) - #134
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The entry's own retirement condition was "when the ERLEF Hex range gains fixed: 2.20.0". It has: api.osv.dev now serves EEF-CVE-2026-43971 with {introduced: 2.9.0, fixed: 2.20.0}, and mix.lock pins cowlib 2.20.0, so the advisory no longer matches. mix hex.audit was reporting the entry as unmatched and removable. No lock change: cowlib 2.20.0, cowboy 2.19.0, mint 1.10.0 and ranch 2.3.0 are already the newest releases and imp has no gun dependency. The two remaining ignores stand as written; neither has a fixed release. Also drops "All three" from the shared-facts paragraph, which is now two.
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imp's lock needs no change. This PR retires one stale advisory ignore.
Audit state
mix hex.auditandmix deps.auditonmainfind no unhandled advisory. imp already pins the newest release of every package that carries one: cowlib 2.20.0, cowboy 2.19.0, mint 1.10.0, ranch 2.3.0. It has no gun dependency, so GHSA-w4f7-4cxr-rv3c does not apply, and mint 1.10.0 already clears EEF-CVE-2026-82728 (HIGH) and EEF-CVE-2026-82729 (MEDIUM), the two advisories that hit dwell.The change
.audit_ignorelisted EEF-CVE-2026-43971 (MEDIUM, Link header directive smuggling incow_link:link/1) with the retirement condition "when the ERLEF Hex range gainsfixed: 2.20.0". That has now happened.api.osv.dev/v1/vulns/EEF-CVE-2026-43971serves the range{introduced: 2.9.0, fixed: 2.20.0}, and mix.lock pins 2.20.0, so the advisory no longer matches the locked dependencies.mix hex.auditwas saying so directly:Left in place, the entry would silently swallow a future 43971 finding. Removing it is the file's own documented behaviour, so the entry and its comment block are deleted, and the shared-facts paragraph that said "All three ERLEF records" is corrected to the two that remain.
Not resolved, unchanged
EEF-CVE-2026-43966 (MEDIUM) and EEF-CVE-2026-43969 (LOW) stay ignored, with their existing write-ups untouched. Neither has a fixed cowlib release: both ERLEF records carry an open-ended range with no fixed event. 43966's fix shipped in cowboy 2.16.0 and imp pins 2.19.0; 43969 has no fix anywhere, and
cow_cookie:cookie/1has no caller in imp's tree.test/dependency_advisory_mitigation_test.exscontinues to lock both claims.Tests
mix quality.check(includesmix deps.audit --ignore-file .audit_ignore): no vulnerabilities found; the two ignores above reported as ignored, and no unmatched-entry warning.mix check(format --check-formatted,compile --warnings-as-errors,test): 54 doctests, 9 properties, 2832 tests, 0 failures, 13 skipped (220 excluded).