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1 vulnerability by Lix Project
CVE-2026-44028 (GCVE-0-2026-44028)
Vulnerability from cvelistv5 – Published: 2026-05-05 00:30 – Updated: 2026-05-05 14:13
VLAI?
Summary
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).
Severity ?
7.5 (High)
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| NixOS | Nix |
Affected:
2.24.4 , < 2.28.7
(semver)
Affected: 2.29.0 , < 2.29.4 (semver) Affected: 2.30.0 , < 2.30.5 (semver) Affected: 2.31.0 , < 2.31.5 (semver) Affected: 2.32.0 , < 2.32.8 (semver) Affected: 2.33.0 , < 2.33.6 (semver) Affected: 2.34.0 , < 2.34.7 (semver) |
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