Status: UPDATED
| Advisory ID: CVE-2026-103242
Key Details
| CVE | CVE-2026-103242 |
| CVSS Score / Version | 7.1 (High) / CVSS v3.1 |
| Updated | 2026-09-30 |
| CVSS Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H |
| CVSS Prose | attack vector is local; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is none; integrity impact is high; availability impact is high. |
| Affected products | Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, and Red Hat Hardened Images |
| Classified as | CWE-122 (Heap-based Buffer Overflow) |
Affected Products, Subsystems & Sectors
| Subsystems | OT Supporting Infrastructure |
| Sectors | Multiple |
What to Know
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. (NVD)
What to Do
Monitor Red Hat's web page for any future patch releases.
References