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Fencer Vulns
high 7.5

CVE-2026-2219 json

It was discovered that dpkg-deb (a component of dpkg, the Debian package management system) does not properly validate the end of the data…

published 2026-03-07 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-10138

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

It was discovered that dpkg-deb (a component of dpkg, the Debian package management system) does not properly validate the end of the data stream when uncompressing a zstd-compressed .deb archive, which may result in denial of service (infinite loop spinning the CPU).

Patch / fix

  • Debian dpkg 1.23.6
  • dpkg Debian 12 1.21.23
  • dpkg Debian 13 1.22.22
  • dpkg Debian 14 1.23.6

debian advisories DEBIAN-CVE-2026-2219

  • dpkg Ubuntu 24.04 LTS 1.22.6ubuntu6.6
  • dpkg Ubuntu 25.10 1.22.21ubuntu3.2

ubuntu advisories UBUNTU-CVE-2026-2219

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

  • update-alternatives SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 1.22.21-160000.3.1
  • dpkg SLES for SAP applications 16.0, SLES 16.0 1.22.21-160000.3.1
  • update-alternatives Linux Micro 6.0 1.22.0-3.1
  • update-alternatives Linux Micro 6.1 1.22.0-slfo.1.1_3.1

suse advisories SUSE-SU-2026:22046-1SUSE-SU-2026:22085-1SUSE-SU-2026:20795-1SUSE-SU-2026:20766-1

  • dpkg openSUSE Leap 16.0 1.22.21-160000.3.1
  • update-alternatives openSUSE Leap 16.0 1.22.21-160000.3.1
  • dpkg openSUSE Tumbleweed 1.22.22-1.1

opensuse advisories openSUSE-SU-2026:20909-1openSUSE-SU-2026:10675-1

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-2026-2219 updated cvss 5.5

dpkg: dpkg-deb: Denial of Service via improper validation of zstd-compressed archives

  • Red Hat All currently supported Red Hat products
    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

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Debian dpkg

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

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.