{"id":"CVE-2026-45384","state":"PUBLISHED","title":"bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update","description":"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.","publishedAt":"2026-06-10T20:00:19.899Z","updatedAt":"2026-06-11T13:38:43.256Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["rikyoz bit7z"],"affected":[{"vendor":"rikyoz","product":"bit7z","versions":[{"version":"< 4.0.12","status":"affected"}]}],"references":["https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h","https://github.com/rikyoz/bit7z/releases/tag/v4.0.12"],"weaknesses":["CWE-59","CWE-377"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45384.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45384","state":"PUBLISHED","datePublished":"2026-06-10T20:00:19.899Z","dateUpdated":"2026-06-11T13:38:43.256Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-12T00:51:29.087Z"},"containers":{"cna":{"title":"bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"rikyoz","product":"bit7z","versions":[{"version":"< 4.0.12","status":"affected"}]}],"references":[{"url":"https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h","name":"https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/rikyoz/bit7z/releases/tag/v4.0.12","name":"https://github.com/rikyoz/bit7z/releases/tag/v4.0.12","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","lang":"en","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-377","lang":"en","description":"CWE-377: Insecure Temporary File","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-10T20:00:19.899Z"},"source":{"advisory":"GHSA-wjch-42rm-q53h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-11T13:38:29.357196Z","id":"CVE-2026-45384","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-11T13:38:43.256Z"}}]}}}