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VulnerabilityPublished

CVE-2026-103242: rpm security update

Affects rpmSource GCVE Database

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Authoritative record:CVE-2026-103242· High 7.1

Not known to be exploited · CVSS 7.1 High : upgrade to 4.18.2-43.oe2403sp1 soon.

Data as of 4 Nov 2026, 16:46 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.18.2-43.oe2403sp1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.

What to do

Upgrade rpm to 4.18.2-43.oe2403sp1.

Affected software

ProductAffectedFixed in
openEuler 24.03-LTS-SP1rpmpkg:rpm/openEuler/rpm&distro=openEuler-24.03-LTS-SP1Other threatsAffected
  • <4.18.2-43.oe2403sp1
Fixed in
  • 4.18.2-43.oe2403sp1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

The RPM Package Manager (RPM) is a powerful package management system capability as below Security Fix(es): A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package&apos;s main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag&apos;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.(CVE-2026-103242)

References

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