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CVE-2026-48864VulnerabilityPublished Updated

libsolv

Affects libsolvSource GCVE Database

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Authoritative record:CVE-2026-48864· High 7.8

Not known to be exploited · CVSS 7.8 High.

Data as of 13 Nov 2026, 13:10 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 May 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 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10libsolvpkg:deb/ubuntu/libsolv?arch=source&distro=stonkingOther threatsAffected
  • 0.7.35-1build1 – 0.7.39-1build1
4 affected builds
Fixed in–
Ubuntu 26.04 LTSlibsolvpkg:deb/ubuntu/libsolv?arch=source&distro=resoluteOther threatsAffected
  • =0.7.32-1
  • =0.7.35-1
  • =0.7.35-1build1
Fixed in–
Ubuntu 25.10libsolvpkg:deb/ubuntu/libsolv?arch=source&distro=questingOther threatsAffected
  • =0.7.31-1build1
  • =0.7.32-1
Fixed in–
Ubuntu 24.04 LTSlibsolvpkg:deb/ubuntu/libsolv?arch=source&distro=nobleOther threatsAffected
  • 0.7.24-1 – 0.7.28-1build2
10 affected builds
Fixed in–
Ubuntu 22.04 LTSlibsolvpkg:deb/ubuntu/libsolv?arch=source&distro=jammyOther threatsAffected
  • 0.7.17-2 – 0.7.20-1ubuntu0.22.04.1
4 affected builds
Fixed in–
Ubuntu 20.04 LTSlibsolvpkg:deb/ubuntu/libsolv?arch=source&distro=focalOther threatsAffected
  • 0.6.35-2ubuntu1 – 0.6.36-2
4 affected builds
Fixed in–

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

AI-suggested

Red Hat states that no mitigation is currently available or meets their criteria for ease of use, deployment, applicability, or stability. Users should monitor Red Hat advisories for future fixes or mitigations. Given the local and user-interaction requirements, limiting exposure to untrusted .solv files and repository metadata is advisable. Upgrading to fixed versions when available is recommended once Red Hat releases patches.

Description

A heap buffer overflow vulnerability exists in libsolv during decompression of specially crafted .solv files due to insufficient input validation. This can lead to out-of-bounds memory access, potentially causing information disclosure, program execution alteration, or denial of service. Exploitation requires local user interaction with malicious repository metadata. Red Hat rates the impact as Moderate given the attack vector limitations. No effective mitigation or fix meeting Red Hat's criteria is currently available.

References

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