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Fencer Vulns
medium 6.5

CVE-2022-26280 json

Libarchive v3.6.0 was discovered to contain an out-of-bounds read via the component zipx_lzma_alone_init.

published 2022-03-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-30841

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Libarchive v3.6.0 was discovered to contain an out-of-bounds read via the component zipx_lzma_alone_init.

Patch / fix

  • libarchive Debian 14, Debian 13, Debian 12 3.6.2-1

debian advisories DEBIAN-CVE-2022-26280

  • libarchive Ubuntu 20.04 LTS 3.4.0-2ubuntu1.2
  • libarchive Ubuntu 22.04 LTS 3.6.0-1ubuntu1

ubuntu advisories UBUNTU-CVE-2022-26280

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libarchive RHEL 9 3.5.3-2.el9_0
  • bsdtar RHEL 9 3.5.3-2.el9_0

red hat advisories RHSA-2022:5252

  • libarchive SLE Module for Development Tools 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 3.5.1-150400.3.3.1
  • libarchive SLE Module for Development Tools 15 SP3, SLE Module for Basesystem 15 SP3, openSUSE Leap 15.3 3.4.2-150200.4.6.1

suse advisories SUSE-SU-2022:1930-1SUSE-SU-2022:1803-1

  • bsdtar openSUSE Tumbleweed 3.7.2-1.1

opensuse advisories openSUSE-SU-2024:13549-1

  • libarchive AlmaLinux 9 3.5.3-2.el9_0
  • bsdtar AlmaLinux 9 3.5.3-2.el9_0

almalinux advisories ALSA-2022:5252

  • libarchive Rocky Linux 9 3.5.3-2.el9_0

rocky linux advisories RLSA-2022:5252

  • libarchive Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 3.6.1-r0

alpine advisories ALPINE-CVE-2022-26280

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libarchive CBL-Mariner 2.0 3.6.1-1

azure linux advisories AZL-9210

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-26280 updated cvss 6.5

libarchive: an out-of-bounds read via the component zipx_lzma_alone_init

  • Red Hat CodeReady Linux Builder (v. 9) bsdcat-debuginfo 3.5.3-2.el9_0, bsdtar-debuginfo 3.5.3-2.el9_0, libarchive-devel 3.5.3-2.el9_0, bsdcpio-debuginfo 3.5.3-2.el9_0, libarchive-debuginfo 3.5.3-2.el9_0, libarchive-debugsource 3.5.3-2.el9_0 Red Hat Enterprise Linux AppStream (v. 9) bsdtar 3.5.3-2.el9_0 Red Hat Enterprise Linux BaseOS (v. 9) libarchive 3.5.3-2.el9_0
    fixed: vendor fix RHSA-2022:5252
  • Red Hat Enterprise Linux 6 libarchive Red Hat Enterprise Linux 7 bsdtar, bsdcpio, libarchive Red Hat Enterprise Linux 8 bsdtar, libarchive
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/libarchive/libarchive/issues/1672 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.