01 Record
CVE-2026-105768
apko /etc/passwd and /etc/group UID/GID truncation writes package-supplied entries as root
MediumPUBLISHEDCNA: chainguard
CNA base score6.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
02 Description
apko /etc/passwd and /etc/group UID/GID truncation writes package-supplied entries as root
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-05 20:17Z1 HR AGO
- Last updated
- 2026-10-05 20:17Z1 HR AGO
- Reserved
- 2026-10-05
- Assigning CNA
- chainguard
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.3)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
- Weaknesses
- CWE-197Numeric Truncation ErrorBase
- Data version
- 5.2
- Document digest
- 11a8e36aed6a2caaa05d495390a991240b0f52d5539c7125a75f00d8d8bfa4f4
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comGHSA-rj6x-hwpv-vhvfhttps://github.com/chainguard-dev/apko/security/advisories/GHSA-rj6x-hwpv-vhvf
- github.comchainguard-dev/apko#2516https://github.com/chainguard-dev/apko/pull/2516
- github.comFix commit 739e7cehttps://github.com/chainguard-dev/apko/commit/739e7ce3f675ffb232e16849b51ff93657f1570c
- github.comapko v1.4.5https://github.com/chainguard-dev/apko/releases/tag/v1.4.5
07 Remediation
Upgrade to apko 1.4.5 or later, which rejects UID and GID values outside 0 to 4294967295 instead of truncating them. Images built with earlier versions from untrusted packages should be rebuilt.