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CVE-2026-42575

apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, apko verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed index. The checksum is parsed and available via ChecksumString(), and the downloaded package control hash is computed, but the two values are never compared in getPackageImpl(). Mismatched packages are silently accepted. An attacker who can su
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:64398c4a55416aaa6e406c05afe96a4e648757206d6599c2e2306e31b0e5167b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-494","description":"CWE-494: Download of Code Without Integrity Check","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/problemTypes/1/descriptions/0

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:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-494","description":"CWE-494: Download of Code Without Integrity Check","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/chainguard-dev/apko/commit/a118c3d604107532b5525bd4bee2fb369a6228aa","tags":["x_refsource_MISC"],"url":"https://github.com/chainguard-dev/apko/commit/a118c3d604107532b5525bd4bee2fb369a6228aa"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /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:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /containers/cna/references/2
{"name":"https://github.com/chainguard-dev/apko/security/advisories/GHSA-hcwr-pq9g-rq3m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chainguard-dev/apko/security/advisories/GHSA-hcwr-pq9g-rq3m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c4a47fa1ff5e56cbe697c102eccebb99eff391e6e1e1f76964d56d59fcaadcd2 · sha256:cd85ff2cf4e03cca… · /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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