🛡️ CVE-2026-41648 on Debian — incus

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

Incus is a system container and virtual machine manager. Prior to version 7.0.0, user provided image and backup tarballs would be unpacked and YAML files parsed without any size restrictions. This was making it easy for an authenticated user to provide a crafted image or backup tarball that when parsed by Incus would lead to a very large YAML document being loaded into memory, potentially causing the entire server to run out of memory. This issue has been patched in version 7.0.0.

Distribution advisory

This page covers CVE-2026-41648 as tracked by Debian, for the package incus. The fix is available in version 7.0.0-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality none, integrity none, availability low.

Affected software

DEBIAN-CVE-2026-41648 is recorded against 2 packages.

incus (fixed in 7.0.0-1)
lxd (fixed in 5.0.2+git20231211.1364ae4-9+deb13u6)

Timeline and source

Published on 7 May 2026 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2026-41648 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-05-07

Updated 2026-08-20

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
incus	—	7.0.0-1
lxd	—	5.0.2+git20231211.1364ae4-9+deb13u6

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2026-41648

🔗 NVD 🔗 Mitre

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