Medium [CVE-2026-88839] passwd/group parser writes heap pointers out of bounds due to stale tokenize endpoint
This medium-severity Red Hat Linux advisory covers CVE-2026-88839; related products: Red Hat Hardened Images.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint. Red Hat rates this moderate (CVSS 6.7).
Weakness: CWE-787. Red Hat lists fixing advisory RHSA-2026:72111 with package busybox-main-1.37.0-9.1.hum1.
Affected product named by the advisory: Red Hat Hardened Images.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 10 days ago·verify at source
- busybox-main-1.37.0-9.1.hum1
- RHSA-2026:72111
Official advisory · high-confidence parse· fetched 10 days ago·verify at source
Mitigation checklist
- Ensure /etc/group and /etc/passwd are writable only by root and protected by mandatory access controls. Monitor these files for unauthorized modifications. Upstream should fix tokenize() to recompute tokenize_end after trimming.
Official advisory · high-confidence parse· fetched 10 days ago·verify at source
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