Denial of Service Vulnerability in Debian Package Management System
CVE-2026-2219

7.5HIGH

Key Information:

Vendor

Debian
Status
Dpkg
Vendor
CVE Published:
7 March 2026

What is CVE-2026-2219?

A vulnerability exists in dpkg-deb, part of the Debian package management system, where improper validation during the decompression of zstd-compressed .deb files can lead to a denial of service. Specifically, this flaw may allow for an infinite loop that significantly impacts CPU performance by consuming resources without resolving. Users and administrators should take precautions to mitigate potential resource exhaustion issues stemming from this vulnerability.

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Deploy the Patch

Affected Version(s)

dpkg 1.21.18

References

https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=661029...
patch
https://bugs.debian.org/1129722
issue-tracking

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yashashree Gund
JSON
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