CVE-2026-44028
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
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).
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Nix
- Vendor
- NixOS
- Product
- Nix
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.24.4 | affected | semver | 2.28.7 | Unavailable | None listed |
| 2.29.0 | affected | semver | 2.29.4 | Unavailable | None listed |
| 2.30.0 | affected | semver | 2.30.5 | Unavailable | None listed |
| 2.31.0 | affected | semver | 2.31.5 | Unavailable | None listed |
| 2.32.0 | affected | semver | 2.32.8 | Unavailable | None listed |
| 2.33.0 | affected | semver | 2.33.6 | Unavailable | None listed |
| 2.34.0 | affected | semver | 2.34.7 | Unavailable | None listed |
Lix
- Vendor
- Lix Project
- Product
- Lix
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.93.0 | affected | semver | 2.93.4 | Unavailable | None listed |
| 2.94.0 | affected | semver | 2.94.2 | Unavailable | None listed |
| 2.95.0 | affected | semver | 2.95.2 | Unavailable | None listed |