{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-16T00:56:59.829","vulnerabilities":[{"cve":{"id":"CVE-2026-44028","sourceIdentifier":"cve@mitre.org","published":"2026-05-05T01:16:06.983","lastModified":"2026-05-09T04:16:26.513","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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)."}],"metrics":{"cvssMetricV31":[{"source":"cve@mitre.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.1,"impactScore":5.8}]},"weaknesses":[{"source":"cve@mitre.org","type":"Secondary","description":[{"lang":"en","value":"CWE-674"}]}],"references":[{"url":"https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407","source":"cve@mitre.org"},{"url":"https://github.com/NixOS/nix/security/advisories/GHSA-vh5x-56v6-4368","source":"cve@mitre.org"},{"url":"https://lix.systems/blog/2026-05-05-lix-unsigned-integer-overflow/","source":"cve@mitre.org"},{"url":"https://www.openwall.com/lists/oss-security/2026/05/04/32","source":"cve@mitre.org"},{"url":"https://www.openwall.com/lists/oss-security/2026/05/04/33","source":"cve@mitre.org"}]}}]}