DEBIAN-CVE-2026-44028

Source
https://security-tracker.debian.org/tracker/CVE-2026-44028
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44028.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-44028
Upstream
Published
2026-05-05T01:16:06Z
Modified
2026-09-14T17:03:13Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in Nix before 2.34.7 and Lix before 2.95.2. Unbounded recursion in the NAR (Nix Archive) parser could lead to a stack-to-heap overflow when the parser is run on a coroutine stack. The stack is allocated without a guard page, which means that a stack overflow could overwrite memory on the heap and could allow arbitrary code execution as the Nix daemon (run as root in multi-user installations) if ASLR hardening is bypassed. This can be exploited by all users able to connect to the daemon (e.g., in Nix, this is configurable via the allowed-users setting, defaulting to all users). The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 for Nix (introduced in 2.24.4); and 2.95.2, 2.94.2, and 2.93.4 for Lix (introduced in 2.93.0).

References

Affected packages

Debian:13 / nix

Package

Name
nix
Purl
pkg:deb/debian/nix?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.26.3+dfsg-1
2.32.5+dfsg-1
2.32.5+dfsg-2
2.34.3+dfsg-1
2.34.6+dfsg-1
2.34.8+dfsg-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44028.json"

Debian:14 / nix

Package

Name
nix
Purl
pkg:deb/debian/nix?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.34.8+dfsg-1

Affected versions

2.*
2.26.3+dfsg-1
2.32.5+dfsg-1
2.32.5+dfsg-2
2.34.3+dfsg-1
2.34.6+dfsg-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44028.json"