CVE catalog

CVE-2026-82327

Severity: Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Aug 28, 2026, 2:00:00 PM UTC
Updated: Aug 28, 2026, 4:18:34 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.16% · Oct 25, 2026

A flaw was found in libsolv, a dependency-resolution library used by RPM-based package managers such as dnf and zypper to work with .solv repository cache files. When libsolv rewrites a .solv cache file, it reads directory-id values from the file's compressed filelist data without validating that they fall within the expected range. A corrupted or specially crafted .solv cache file (for example, one left in a torn state after an unclean system shutdown) can cause an out-of-bounds memory write when a tool such as dnf, yum, or zypper next processes it. Successful exploitation is expected to result in a crash of the affected tool (denial of service); it is not expected to allow arbitrary code execution because the out-of-bounds write always stores a fixed, non-attacker-controlled value.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libsolv	sid	`0.7.40-1`	vulnerable
Debian	libsolv	forky	`0.7.40-1`	vulnerable
Debian	libsolv	trixie	`0.7.32-1`	vulnerable
Debian	libsolv	bookworm	`0.7.23-1+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libsolv	source	sid	`(unfixed)`	not yet assigned	Not reported	[1147424]
Debian	libsolv	source	forky	`(unfixed)`	not yet assigned	Not reported	[1147424]
Debian	libsolv	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1147424]
Debian	libsolv	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1147424]

[Debian bug #1147424]

Notes

[trixie] libsolv: Minor issue [bookworm] libsolv: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libsolv1]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[libsolv-dev]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[libsolv-doc]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · all · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · all · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[libsolvext1]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[libsolvext-dev]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[libsolv-perl]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[libsolv-tools]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
[python3-solv]Affected
Source package: [libsolv]
Details (2)
- 0.7.23-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12
- 0.7.23-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsolv · debian · bookworm; nvd · libsolv · debian · 12

[Debian 13 (Trixie)]

[libsolv1]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13
[libsolv-dev]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13
[libsolv-doc]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · all · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · all · trixie
  Affected
  nvd · libsolv · debian · 13
[libsolvext1]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13
[libsolvext-dev]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13
[libsolv-perl]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13
[libsolv-tools]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13
[python3-solv]Affected
Source package: [libsolv]
Details (2)
- 0.7.32-1 · amd64 · trixie
  Affected
  nvd · libsolv · debian · 13
- 0.7.32-1 · arm64 · trixie
  Affected
  nvd · libsolv · debian · 13

Observed: Oct 23, 2026, 9:33:41 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]