CVE-2026-95520
High · 7.1CVSS
7.1
EPSS
0.1%
Published
Sep 29, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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