{"id":"CVE-2026-54071","state":"PUBLISHED","title":"BabelDOC: Arbitrary Code Execution via CMap Pickle Deserialization in babeldoc/pdfminer/cmapdb.py","description":"BabelDOC is a document translation tool. Prior to 0.6.3, BabelDOC's vendored PDF parser in babeldoc/pdfminer/cmapdb.py deserializes untrusted pickle data when CMapDB._load_data() loads CMap files. PDF-controlled Encoding or CMapName values and embedded PostScript usecmap operators can reach this sink after path separators are decoded, while _normalize_cmap_name() removes only a leading slash. Absolute paths or traversal sequences can escape the trusted CMap directories through os.path.join(), select an attacker-writable .pickle.gz file, and cause pickle.loads() to execute arbitrary Python code with the privileges of the BabelDOC process. This issue is fixed in version 0.6.3.","publishedAt":"2026-08-21T18:55:42.248Z","updatedAt":"2026-08-21T21:43:28.162Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["funstory-ai BabelDOC"],"affected":[{"vendor":"funstory-ai","product":"BabelDOC","versions":[{"version":"< 0.6.3","status":"affected"}]}],"references":["https://github.com/funstory-ai/BabelDOC/security/advisories/GHSA-m8gf-v64p-gfmg","https://github.com/funstory-ai/BabelDOC/commit/28f784ca6b437dbba040bfd9c67110373cd0924b","https://github.com/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.6.3.md","https://github.com/funstory-ai/BabelDOC/releases/tag/v0.6.3"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54071.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54071","state":"PUBLISHED","datePublished":"2026-08-21T18:55:42.248Z","dateUpdated":"2026-08-21T21:43:28.162Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-11T18:24:35.098Z"},"containers":{"cna":{"title":"BabelDOC: Arbitrary Code Execution via CMap Pickle Deserialization in babeldoc/pdfminer/cmapdb.py","descriptions":[{"lang":"en","value":"BabelDOC is a document translation tool. Prior to 0.6.3, BabelDOC's vendored PDF parser in babeldoc/pdfminer/cmapdb.py deserializes untrusted pickle data when CMapDB._load_data() loads CMap files. PDF-controlled Encoding or CMapName values and embedded PostScript usecmap operators can reach this sink after path separators are decoded, while _normalize_cmap_name() removes only a leading slash. Absolute paths or traversal sequences can escape the trusted CMap directories through os.path.join(), select an attacker-writable .pickle.gz file, and cause pickle.loads() to execute arbitrary Python code with the privileges of the BabelDOC process. This issue is fixed in version 0.6.3."}],"affected":[{"vendor":"funstory-ai","product":"BabelDOC","versions":[{"version":"< 0.6.3","status":"affected"}]}],"references":[{"url":"https://github.com/funstory-ai/BabelDOC/security/advisories/GHSA-m8gf-v64p-gfmg","name":"https://github.com/funstory-ai/BabelDOC/security/advisories/GHSA-m8gf-v64p-gfmg","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/funstory-ai/BabelDOC/commit/28f784ca6b437dbba040bfd9c67110373cd0924b","name":"https://github.com/funstory-ai/BabelDOC/commit/28f784ca6b437dbba040bfd9c67110373cd0924b","tags":["x_refsource_MISC"]},{"url":"https://github.com/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.6.3.md","name":"https://github.com/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.6.3.md","tags":["x_refsource_MISC"]},{"url":"https://github.com/funstory-ai/BabelDOC/releases/tag/v0.6.3","name":"https://github.com/funstory-ai/BabelDOC/releases/tag/v0.6.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"CWE-502: Deserialization of Untrusted Data","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-21T18:55:42.248Z"},"source":{"advisory":"GHSA-m8gf-v64p-gfmg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T21:00:08.745343Z","id":"CVE-2026-54071","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-21T21:43:28.162Z"}}]}}}