CVE-2026-110451
Nix before 2.35.3 and Lix before 2.95.4 on macOS allow a Seatbelt sandbox escape (for an...
CVE-2026-110451 is a medium vulnerability (CVSS 4.3) in Nixos Nix, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-110451- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-100807
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.
- Record
EUVD-2026-100807- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5h53-jg3j-22gg
Nix before 2.35.3 and Lix before 2.95.4 on macOS allow a Seatbelt sandbox escape (for an...
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.
- Record
GHSA-5h53-jg3j-22gg- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-110451- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-110451
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.
- Record
UBUNTU-CVE-2026-110451- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nixUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 2.3.10+dfsg1-12.3.10+dfsg1-1build12.6.0+dfsg-22.6.0+dfsg-32.6.0+dfsg-3ubuntu0.1~esm1 |
None known |
nixUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 2.16.1+dfsg-3ubuntu12.18.1+dfsg-1ubuntu12.18.1+dfsg-1ubuntu22.18.1+dfsg-1ubuntu42.18.1+dfsg-1ubuntu52.18.1+dfsg-1ubuntu5+esm2 |
None known |
nixUbuntu:26.10 |
All versions, plus listed versions 2.34.3+dfsg-12.34.6+dfsg-12.34.6+dfsg-1build12.34.8+dfsg-12.34.8+dfsg-1build1 |
None known |
nixUbuntu:26.04:LTS |
All versions, plus listed versions 2.26.3+dfsg-1ubuntu42.26.3+dfsg-1ubuntu52.32.5+dfsg-1ubuntu32.32.5+dfsg-2ubuntu12.34.3+dfsg-1 |
None known |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, GitHub Advisories, NVD, OSV |