CVE-2026-110449 Nix & Lix - Integer Overflow

Nix < 2.35.3 and Lix < 2.95.4 contain an integer overflow caused by mishandled list allocation when evaluating untrusted expressions, letting attackers cause out-of-bounds write, exploit requires untrusted expressions.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.25% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Integer Overflow
Impact
Out Of Bounds Rw
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-190

Vendor fix

Update Nix to 2.35.3 or later and Lix to 2.95.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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