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CVE-2026-25121

apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.1, a path traversal vulnerability was discovered in apko's dirFS filesystem abstraction. An attacker who can supply a malicious APK package (e.g., via a compromised or typosquatted repository) could create directories or symlinks outside the intended installation root. The MkdirAll, Mkdir, and Symlink methods in pkg/apk/fs/rwosfs.go use filepath.Join() without validating that th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5cabde2f7e3150e575a72492d7c604fba5cdea87593a35a93a93c48e26882f13
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"apko","vendor":"chainguard-dev","versions":[{"status":"affected","version":">= 0.14.8, < 1.1.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8d3881cb7e627853e8a6c60540bcb41f25826f4c5a6d431f19f1fd242aea5a8a · sha256:e6654edf49e06d03… · /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:v2:8d3881cb7e627853e8a6c60540bcb41f25826f4c5a6d431f19f1fd242aea5a8a · sha256:e6654edf49e06d03… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-23","description":"CWE-23: Relative Path Traversal","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8d3881cb7e627853e8a6c60540bcb41f25826f4c5a6d431f19f1fd242aea5a8a · sha256:e6654edf49e06d03… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/chainguard-dev/apko/commit/d8b7887a968a527791b3c591ae83928cb49a9f14","tags":["x_refsource_MISC"],"url":"https://github.com/chainguard-dev/apko/commit/d8b7887a968a527791b3c591ae83928cb49a9f14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8d3881cb7e627853e8a6c60540bcb41f25826f4c5a6d431f19f1fd242aea5a8a · sha256:e6654edf49e06d03… · /containers/cna/references/1
{"name":"https://github.com/chainguard-dev/apko/security/advisories/GHSA-5g94-c2wx-8pxw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chainguard-dev/apko/security/advisories/GHSA-5g94-c2wx-8pxw"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8d3881cb7e627853e8a6c60540bcb41f25826f4c5a6d431f19f1fd242aea5a8a · sha256:e6654edf49e06d03… · /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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