1sealsemantic last-mile verification

Research / Finding

Path traversal in apko dirFS allows filesystem writes outside base

F-APKO-001

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

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Recorded evidence

7.5high
CVE-2026-25121CVEchainguard-dev/apko

Path traversal in apko dirFS allows filesystem writes outside base

Fixed in: apko (commit d8b7887)

patched
details
Finding IDs
F-APKO-001
CVE
CVE-2026-25121
GHSA
GHSA-5g94-c2wx-8pxw
Status
patched
Fixed in
apko (commit d8b7887)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVE registry state
PUBLISHED
CVE state checked
Upstream title
Path traversal in apko dirFS allows filesystem writes outside base
Upstream CWE
CWE-23
Upstream publication
Upstream updated
Metadata fetched
Upstream @1seal credit
@1seal: reporter (accepted)

F-APKO-001: File / path escapes. Filesystem operations escape the directory-backed root. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-APKO-001

Security area (1seal assessment): Authorization. Filesystem operations escape the directory-backed root. Reviewed 24 Sep 2026.

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How this page groups evidence

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