High [CVE-2026-103242] Heap-based buffer overflow write in hex2binv via a mistyped RPMTAG_FILESIGNATURES header tag
This high-severity Red Hat Linux advisory covers CVE-2026-103242; related products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
Heap-based buffer overflow write in hex2binv() via a mistyped RPMTAG_FILESIGNATURES header tag. Red Hat rates this moderate (CVSS 7.1).
Weakness: CWE-122.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images; and 16 more.
Affected products named by the advisory: Red Hat package: python3-rpm; Red Hat package: rpm-apidocs; Red Hat package: rpm-build-libs; Red Hat package: rpm-cron; and 12 more.
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 6 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Mitigation checklist
- Avoid processing or extracting RPM packages from untrusted or unsigned sources. Do not run rpm -qlvp, rpm2cpio, or rpm2archive against RPM files whose origin and integrity cannot be verified.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
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