High severity · published Mar 7, 2026
CVE-2026-2219
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…
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DP
Dpkg · Debian
1.21.18 before 1.21.23; 1.22.0 before 1.22.22; 1.23.0 before 1.23.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2219
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2219
Issue Tracking
https://bugs.debian.org/1129722
Patch
https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=6610297a62c0780dd0e80b0e302ef64fdcc9d313
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