Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-44028

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.

lix是lix开源的一款软件包管理器。Nix是Nix开源的一个包管理器。 Nix 2.34.7之前版本和lix 2.95.2之前版本存在安全漏洞，该漏洞源于NAR解析器中无界递归可能导致栈到堆溢出，当解析器在协程栈上运行时，栈分配无保护页，栈溢出可能覆盖堆内存，若绕过ASLR强化，可能允许任意代码执行作为Nix守护进程。

CVSS 7.5 · High EPSS 0.18% · P6

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 10

VendorProduct Version RangeStatus
Lix Project Lix 2.93.0< 2.93.4 affected
2.94.0< 2.94.2 affected
2.95.0< 2.95.2 affected
NixOS Nix 2.24.4< 2.28.7 affected
2.29.0< 2.29.4 affected
2.30.0< 2.30.5 affected
2.31.0< 2.31.5 affected
2.32.0< 2.32.8 affected
2.33.0< 2.33.6 affected
2.34.0< 2.34.7 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-44028

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Nix before 2.34.7 and Lix before 2.95.2. Unbounded recursion in the NAR (Nix Archive) parser could lead to a stack-to-heap overflow when the parser is run on a coroutine stack. The stack is allocated without a guard page, which means that a stack overflow could overwrite memory on the heap and could allow arbitrary code execution as the Nix daemon (run as root in multi-user installations) if ASLR hardening is bypassed. This can be exploited by all users able to connect to the daemon (e.g., in Nix, this is configurable via the allowed-users setting, defaulting to all users). The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 for Nix (introduced in 2.24.4); and 2.95.2, 2.94.2, and 2.93.4 for Lix (introduced in 2.93.0).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
Nix和lix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
lix是lix开源的一款软件包管理器。Nix是Nix开源的一个包管理器。 Nix 2.34.7之前版本和lix 2.95.2之前版本存在安全漏洞，该漏洞源于NAR解析器中无界递归可能导致栈到堆溢出，当解析器在协程栈上运行时，栈分配无保护页，栈溢出可能覆盖堆内存，若绕过ASLR强化，可能允许任意代码执行作为Nix守护进程。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NixOS Nix 2.24.4 ~ 2.28.7 -
Lix Project Lix 2.93.0 ~ 2.93.4 -

II. Public POCs for CVE-2026-44028

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-44028

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-44028 (2)

Mailing List Discussions for CVE-2026-44028 (2)

Security Blog Posts for CVE-2026-44028 (1)

IV. Related Vulnerabilities

Same product: Nix
Same vendor: NixOS
Same weakness: CWE-674

V. Comments for CVE-2026-44028

No comments yet

Leave a comment