Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.6.3.md
- https://github.com/funstory-ai/BabelDOC/commit/28f784ca6b437dbba040bfd9c67110373
- https://github.com/funstory-ai/BabelDOC/releases/tag/v0.6.3
- https://github.com/funstory-ai/BabelDOC/security/advisories/GHSA-m8gf-v64p-gfmg
FAQ
What is CVE-2026-54071?
CVE-2026-54071 is a vulnerability with a CVSS score of 7.8 (HIGH). 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...
How severe is CVE-2026-54071?
CVE-2026-54071 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54071?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.