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VulnerabilityPublished

CVE-2026-91094: Debian dpkg

Affects Debian dpkgSource CVE Database V5

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Not known to be exploited.

Data as of 13 Nov 2026, 15:06 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
DebiandpkgAffected
  • <1.23.12
Fixed in–

AI-suggested

Users should upgrade dpkg to version 1.23.12 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated in the provided data.

Description

CVE-2026-91094 is a directory traversal vulnerability in the Debian dpkg tool when unpacking 3.0 (quilt) source packages. The issue arises because the packaging tarball can include the quilt database directory (.pc) containing attacker-controlled symbolic links. When patches fail to apply, the code that restores backup files may follow these symlinks, allowing modification or removal of arbitrary files pointed to by the attacker.

References

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