CVE-2026-103242
highpriority · track · 28EPSS 0.001 · 2 %ileDEFRUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3676RPM: Schwachstelle ermöglicht CodeausführungDeutsch2026-09-30csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in RPM ausnutzen, um potenziell Code auszuführen, Daten zu manipulieren oder um einen Denial-of-Service-Zustand herbeizuführen.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
sources
Which sources assert this record, and when.
references (2) nvd
External citations — patches, advisories, analysis.
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