HIGH 7.1 NVD
CVE-2026-103242
A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header typ
A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.
References
- https://access.redhat.com/security/cve/CVE-2026-103242
- https://bugzilla.redhat.com/show_bug.cgi?id=2543866
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-09-30 via NVD.
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