HIGH 7.1 NVD
CVE-2026-95520
A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFF
A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's independently-controlled cpio filesize field is used to write attacker-controlled data 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-2026-95520
- https://bugzilla.redhat.com/show_bug.cgi?id=2537809
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-09-29 via NVD.
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