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CVE-2026-110449

Quick assessment

Affected
NixOS Nix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Nix 2.35.3 之前版本以及 Lix 2.95.4 之前版本中，当评估不受信任的表达式时，由于列表分配处理不当，会导致整数溢出及随后的越界写入漏洞。

CVSS 7.5 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
NixOS Nix < 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 affected
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I. Basic Information for CVE-2026-110449

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
NixOS Nix 0 ~ 2.28.8 -

II. Public POCs for CVE-2026-110449

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-110449

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Other References for CVE-2026-110449 (1)

Same Patch Batch · NixOS · 2026-10-14 · 5 CVEs total

CVE-2026-110450 8.0 HIGH Nix/Lix提权漏洞
CVE-2026-110451 4.3 MEDIUM Nix/Lix macOS座套沙箱逃逸
CVE-2026-110453 4.3 MEDIUM Nix <2.35.3 沙箱绕过漏洞
CVE-2026-110452 4.0 MEDIUM Nix < 2.35.3 安装器所有权配置错误漏洞

IV. Related Vulnerabilities

Same product: Nix
Same vendor: NixOS
Same weakness: CWE-190

V. Comments for CVE-2026-110449

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