CVE-2026-110451CWE-863broken-access-control

CVE-2026-110451

Medium · published October 14, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
2.5
In the wild
Unconfirmed
What it is

Nix before 2.35.3 and Lix before 2.95.4 on macOS allow a Seatbelt sandbox escape (for an unconfined build) because a certain size threshold is mishandled.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00131 · 2.5th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-14T09:16Z
References (1)
https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 14 OCT 04:08Z
    Nix before 2.35.3 and Lix before 2.95.4 on macOS allow a Seatbelt sandbox escape (for an unconfined build) because a certain size threshold is mishandled
    cvelistv5
  • 14 OCT 04:08Z
    Nix before 2.35.3 and Lix before 2.95.4 on macOS allow a Seatbelt sandbox escape (for an unconfined build) because a certain size threshold is mishandled
    cvelistv5