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CVE-2026-44029

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. 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 (introduced in 2.24.7);
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d0ef4cc53f5d7a97560b796bd781a90654a3dbaa64abea652e160bbcc5fab3e3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Nix","vendor":"NixOS","versions":[{"lessThan":"2.28.7","status":"affected","version":"2.24.7","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_v5affected
    urn:baitaphish:normalized-source-record:v2:2bbddfa50bbb71bb70f85ec3d31f7efe2dc3cf16f8ffc042964093e7b9267e83 · sha256:be0c24b3617da42d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2bbddfa50bbb71bb70f85ec3d31f7efe2dc3cf16f8ffc042964093e7b9267e83 · sha256:be0c24b3617da42d… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-36","description":"CWE-36 Absolute Path Traversal","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2bbddfa50bbb71bb70f85ec3d31f7efe2dc3cf16f8ffc042964093e7b9267e83 · sha256:be0c24b3617da42d… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2bbddfa50bbb71bb70f85ec3d31f7efe2dc3cf16f8ffc042964093e7b9267e83 · sha256:be0c24b3617da42d… · /containers/cna/references/0
{"url":"https://github.com/NixOS/nix/security/advisories/GHSA-gr92-w2r5-qw5p"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2bbddfa50bbb71bb70f85ec3d31f7efe2dc3cf16f8ffc042964093e7b9267e83 · sha256:be0c24b3617da42d… · /containers/cna/references/2
{"url":"https://www.openwall.com/lists/oss-security/2026/05/04/33"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2bbddfa50bbb71bb70f85ec3d31f7efe2dc3cf16f8ffc042964093e7b9267e83 · sha256:be0c24b3617da42d… · /containers/cna/references/1

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.

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