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CVE-2026-110449

Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds write when evaluating untrusted expressions…

High7.5EPSS 0.25%
Published
Updated
Reserved
Assigned by
mitre

Description

Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds write when evaluating untrusted expressions because list allocation is mishandled.

Scores

CVSS scores of CVE-2026-110449, by who scored it
Scored byCVSSScoreVector
mitreCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
NVDNVD · Deferred3.1High7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
EPSS (exploitation in 30 days)
0.25% · top 84% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • NixOS · Nix

    • affected < 2.28.8
    • affected 2.29.0 – < 2.30.6
    • affected 2.31.0 – < 2.31.6
    • affected 2.32.0 – < 2.34.9
    • affected 2.35.0 – < 2.35.3

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .