CVE Explorer
CVE-2026-44028
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
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1
Preserved source conflicts
No provider value was silently selected as the winner.
affected · 2 assertions
{"defaultStatus":"unaffected","product":"Nix","vendor":"NixOS","versions":[{"lessThan":"2.28.7","status":"affected","version":"2.24.4","versionType":"semver"},{"lessThan":"2.29.4","status":"affected","version":"2.29.0","versionType":"semver"},{"lessThan":"2.30.5","status":"affected","version":"2.30.0","versionType":"semver"},{"lessThan":"2.31.5","status":"affected","version":"2.31.0","versionType":"semver"},{"lessThan":"2.32.8","status":"affected","version":"2.32.0","versionType":"semver"},{"lessThan":"2.33.6","status":"affected","version":"2.33.0","versionType":"semver"},{"lessThan":"2.34.7",…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Lix","vendor":"Lix Project","versions":[{"lessThan":"2.93.4","status":"affected","version":"2.93.0","versionType":"semver"},{"lessThan":"2.94.2","status":"affected","version":"2.94.0","versionType":"semver"},{"lessThan":"2.95.2","status":"affected","version":"2.95.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/affected/1
Affected products and versions
2 source assertions{"defaultStatus":"unaffected","product":"Nix","vendor":"NixOS","versions":[{"lessThan":"2.28.7","status":"affected","version":"2.24.4","versionType":"semver"},{"lessThan":"2.29.4","status":"affected","version":"2.29.0","versionType":"semver"},{"lessThan":"2.30.5","status":"affected","version":"2.30.0","versionType":"semver"},{"lessThan":"2.31.5","status":"affected","version":"2.31.0","versionType":"semver"},{"lessThan":"2.32.8","status":"affected","version":"2.32.0","versionType":"semver"},{"lessThan":"2.33.6","status":"affected","version":"2.33.0","versionType":"semver"},{"lessThan":"2.34.7",…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Lix","vendor":"Lix Project","versions":[{"lessThan":"2.93.4","status":"affected","version":"2.93.0","versionType":"semver"},{"lessThan":"2.94.2","status":"affected","version":"2.94.0","versionType":"semver"},{"lessThan":"2.95.2","status":"affected","version":"2.95.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/affected/1
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"url":"https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/references/0
{"url":"https://github.com/NixOS/nix/security/advisories/GHSA-vh5x-56v6-4368"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/references/1
{"url":"https://lix.systems/blog/2026-05-05-lix-unsigned-integer-overflow/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/references/4
{"url":"https://www.openwall.com/lists/oss-security/2026/05/04/32"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/references/3
{"url":"https://www.openwall.com/lists/oss-security/2026/05/04/33"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b23785f33b9237ac10f785ac5dff9f1547f6277dee952406a8f17728a87d3964 · sha256:645c62bf21b3f09d… · /containers/cna/references/2
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.