{"id":"CVE-2026-30853","state":"PUBLISHED","title":"calibre has a Path Traversal Leading to Arbitrary File Write","description":"calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to 9.5.0, a path traversal vulnerability in the RocketBook (.rb) input plugin (src/calibre/ebooks/rb/reader.py) allows an attacker to write arbitrary files to any path writable by the calibre process when a user opens or converts a crafted .rb file. This is the same bug class fixed in CVE-2026-26065 for the PDB readers, but the fix was never applied to the RB reader. This vulnerability is fixed in 9.5.0.","publishedAt":"2026-03-13T19:00:09.925Z","updatedAt":"2026-03-13T19:42:26.573Z","severity":{"score":5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["kovidgoyal calibre"],"affected":[{"vendor":"kovidgoyal","product":"calibre","versions":[{"version":"< 9.5.0","status":"affected"}]}],"references":["https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/30xxx/CVE-2026-30853.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-30853","state":"PUBLISHED","datePublished":"2026-03-13T19:00:09.925Z","dateUpdated":"2026-03-13T19:42:26.573Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-05T21:27:35.341Z"},"containers":{"cna":{"title":"calibre has a Path Traversal Leading to Arbitrary File Write","descriptions":[{"lang":"en","value":"calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to 9.5.0, a path traversal vulnerability in the RocketBook (.rb) input plugin (src/calibre/ebooks/rb/reader.py) allows an attacker to write arbitrary files to any path writable by the calibre process when a user opens or converts a crafted .rb file. This is the same bug class fixed in CVE-2026-26065 for the PDB readers, but the fix was never applied to the RB reader. This vulnerability is fixed in 9.5.0."}],"affected":[{"vendor":"kovidgoyal","product":"calibre","versions":[{"version":"< 9.5.0","status":"affected"}]}],"references":[{"url":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x","name":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-13T19:00:09.925Z"},"source":{"advisory":"GHSA-7mp7-rfrg-542x","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-13T19:42:19.321037Z","id":"CVE-2026-30853","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":"2026-03-13T19:42:26.573Z"}}]}}}