{"id":"CVE-2026-14966","state":"PUBLISHED","title":"Symlink guard bypass in unarchive module allows planting symlinks during extraction","description":"BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted during a scan (for example via filedownload), bypassed the guard and caused an attacker-controlled symlink to be written into the extraction directory. The effect is limited to planting the symlink (its target is not written through), and only hosts using such a legacy p7zip build are affected; current mainline 7-Zip is not.","publishedAt":"2026-07-08T15:03:47.591Z","updatedAt":"2026-07-08T15:57:12.247Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","source":"BLSOPS"},"assigner":"BLSOPS","products":["Black Lantern Security BBOT"],"affected":[{"vendor":"Black Lantern Security","product":"BBOT","defaultStatus":"unaffected","versions":[{"version":"2.3.1","status":"affected","lessThanOrEqual":"2.8.6","versionType":"custom"}],"repo":"https://github.com/blacklanternsecurity/bbot"}],"references":["https://github.com/blacklanternsecurity/bbot/commit/a3f1a2292e2b0a553827c6175b761abe28807735"],"weaknesses":["CWE-59"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/14xxx/CVE-2026-14966.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-14966","state":"PUBLISHED","datePublished":"2026-07-08T15:03:47.591Z","dateUpdated":"2026-07-08T15:57:12.247Z","assignerShortName":"BLSOPS","assignerOrgId":"27b6da8a-f51d-48d9-9eef-9b7f3405d20d","dateReserved":"2026-07-07T15:14:09.717Z"},"containers":{"cna":{"title":"Symlink guard bypass in unarchive module allows planting symlinks during extraction","descriptions":[{"lang":"en","value":"BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted during a scan (for example via filedownload), bypassed the guard and caused an attacker-controlled symlink to be written into the extraction directory. The effect is limited to planting the symlink (its target is not written through), and only hosts using such a legacy p7zip build are affected; current mainline 7-Zip is not."}],"affected":[{"vendor":"Black Lantern Security","product":"BBOT","defaultStatus":"unaffected","versions":[{"version":"2.3.1","status":"affected","lessThanOrEqual":"2.8.6","versionType":"custom"}],"repo":"https://github.com/blacklanternsecurity/bbot"}],"references":[{"url":"https://github.com/blacklanternsecurity/bbot/commit/a3f1a2292e2b0a553827c6175b761abe28807735"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","description":"CWE-59 Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"BLSOPS","orgId":"27b6da8a-f51d-48d9-9eef-9b7f3405d20d","dateUpdated":"2026-07-08T15:03:47.591Z"},"impacts":[{"capecId":"CAPEC-132","descriptions":[{"lang":"en","value":"CAPEC-132 Symlink Attack"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-08T15:57:06.003777Z","id":"CVE-2026-14966","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-08T15:57:12.247Z"}}]}}}