CVE-2026-54071
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 3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-25)
- CWE
- CWE-502
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m8gf-v64p-gfmg | PyPI | babeldoc | <0.6.3 | 0.6.3 |
| PYSEC-2026-2389 | PyPI | babeldoc | <0.6.3 | 0.6.3 |
References
- https://github.com/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.6.3.md
- https://github.com/funstory-ai/BabelDOC/commit/28f784ca6b437dbba040bfd9c67110373cd0924b
- https://github.com/funstory-ai/BabelDOC/releases/tag/v0.6.3
- https://github.com/funstory-ai/BabelDOC/security/advisories/GHSA-m8gf-v64p-gfmg