CVE-2026-91094VulnerabilityPublished 13 Nov 2026

A directory traversal bug was discovered when unpacking 3.0 (quilt) source packages, where the packaging tarball could

Source GCVE Database

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Authoritative record:CVE-2026-91094· High

Not known to be exploited.

Data as of 13 Nov 2026, 16:49 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

Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-2qrp-jmvp-2795

What to do

Affected software

Product	Affected	Fixed in
Debiandpkg	Affected <1.23.12	Fixed in–

Description

A directory traversal vulnerability exists in version 3.0 of the quilt source package unpacking process. The issue arises when the packaging tarball contains the quilt database directory (.pc) with attacker-controlled symbolic links. If patches fail to apply, the code responsible for restoring backup files may be tricked into modifying or deleting files pointed to by these malicious symlinks.

Impact

An attacker able to craft a malicious packaging tarball can exploit this flaw to modify or delete files on the system by leveraging symbolic links in the quilt database directory during the backup restoration process. This could lead to unauthorized changes to files, potentially impacting system integrity or security depending on the files affected.

Summary

This vulnerability involves a directory traversal flaw during the unpacking of quilt 3.0 source packages. Specifically, the packaging tarball can include the .pc directory with attacker-controlled symlinks. When patches fail to apply, the restoration process for backup files can be exploited to alter or remove arbitrary files referenced by these symlinks, potentially leading to unauthorized file modification or deletion.

References

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