CVE-2026-110449
Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds...
CVE-2026-110449 is a high vulnerability (CVSS 7.5) 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 0.25%, the 16th percentile. Fixed in nix 2.35.4+dfsg-1.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-110449- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-190
- Updated
- 2026-11-02
EUVDEUVD-2026-100802
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.
- Record
EUVD-2026-100802- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5jjg-xg55-6mw3
Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds...
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.
- Record
GHSA-5jjg-xg55-6mw3- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-190
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-110449- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-190
- Updated
- 2026-11-02
OSVDEBIAN-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 because list allocation is mishandled.
- Record
DEBIAN-CVE-2026-110449- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L - Updated
- 2026-11-02
OSVUBUNTU-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 because list allocation is mishandled.
- Record
UBUNTU-CVE-2026-110449- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nixDebian:12 |
All versions, plus listed versions 2.16.1+dfsg-12.16.1+dfsg-22.16.1+dfsg-32.17.1+dfsg-12.18.1+dfsg-1 Show 16 moreShow less2.22.1+dfsg-12.23.3+dfsg-12.23.3+dfsg-22.24.12+dfsg-12.24.8+dfsg-12.24.9+dfsg-12.24.9+dfsg-22.25.4+dfsg-12.26.3+dfsg-12.32.5+dfsg-12.32.5+dfsg-22.34.3+dfsg-12.34.6+dfsg-12.34.8+dfsg-12.35.4+dfsg-12.8.0-1.1 |
None known |
nixDebian:13 |
All versions, plus listed versions 2.26.3+dfsg-12.32.5+dfsg-12.32.5+dfsg-22.34.3+dfsg-12.34.6+dfsg-12.34.8+dfsg-12.35.4+dfsg-1 |
None known |
nixDebian:14 |
before 2.35.4+dfsg-1, plus listed versions 2.26.3+dfsg-12.32.5+dfsg-12.32.5+dfsg-22.34.3+dfsg-12.34.6+dfsg-12.34.8+dfsg-1 |
2.35.4+dfsg-1 |
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 |