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CVE-2026-45384

bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.12, there is an arbitrary file overwrite vulnerability via symlink attack on predictable temp files during archive update. This issue has been patched in version 4.0.12.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:645f06302653fc3bce919dab5e6409a3ccc59b9e06ac93e03cd33886305e772f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-377","description":"CWE-377: Insecure Temporary File","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"bit7z","vendor":"rikyoz","versions":[{"status":"affected","version":"< 4.0.12"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-377","description":"CWE-377: Insecure Temporary File","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/rikyoz/bit7z/releases/tag/v4.0.12","tags":["x_refsource_MISC"],"url":"https://github.com/rikyoz/bit7z/releases/tag/v4.0.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/references/1
{"name":"https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:490db289e868ffa101463d13c146b83325d0e471899935515e4d9d654ca0f292 · sha256:513faca0d9bf94ac… · /containers/adp/0/references/0

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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