CVE Explorer

CVE-2026-42576

apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, DiscoverKeys in pkg/apk/apk/implementation.go unconditionally type-asserts JWKS keys as *rsa.PublicKey without checking the key type. If a repository JWKS endpoint returns a non-RSA key (e.g. EC), the unchecked assertion panics and crashes apko. This affects any workflow that initializes the APK database and fetches repository keys. This issue has been patched in version 1.2.7.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9fc8e8b2aa61c88305e40dd0ee8cf2b093ff23020aa9425b322165d21905aa6f

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"apko","vendor":"chainguard-dev","versions":[{"status":"affected","version":"< 1.2.7"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1a580d965eba19f6a02f6f15601471fac6350a6ce99ad4232700d8bd4020febd · sha256:e2d29f7268419fd6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1a580d965eba19f6a02f6f15601471fac6350a6ce99ad4232700d8bd4020febd · sha256:e2d29f7268419fd6… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-704","description":"CWE-704: Incorrect Type Conversion or Cast","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1a580d965eba19f6a02f6f15601471fac6350a6ce99ad4232700d8bd4020febd · sha256:e2d29f7268419fd6… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/chainguard-dev/apko/commit/6604826b19e36e9bc6e196592800fad93738f4a1","tags":["x_refsource_MISC"],"url":"https://github.com/chainguard-dev/apko/commit/6604826b19e36e9bc6e196592800fad93738f4a1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1a580d965eba19f6a02f6f15601471fac6350a6ce99ad4232700d8bd4020febd · sha256:e2d29f7268419fd6… · /containers/cna/references/1

{"name":"https://github.com/chainguard-dev/apko/releases/tag/v1.2.7","tags":["x_refsource_MISC"],"url":"https://github.com/chainguard-dev/apko/releases/tag/v1.2.7"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1a580d965eba19f6a02f6f15601471fac6350a6ce99ad4232700d8bd4020febd · sha256:e2d29f7268419fd6… · /containers/cna/references/2

{"name":"https://github.com/chainguard-dev/apko/security/advisories/GHSA-m7hm-vm4x-28jf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chainguard-dev/apko/security/advisories/GHSA-m7hm-vm4x-28jf"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1a580d965eba19f6a02f6f15601471fac6350a6ce99ad4232700d8bd4020febd · sha256:e2d29f7268419fd6… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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