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CVE-2026-124553 (GCVE-0-2026-124553)

Vulnerability from cvelistv5 – Published: 2026-11-08 14:12 – Updated: 2026-11-09 14:16

Title

BabelDOC from 0.3.61 before 0.7.0 Denial of Service via ToUnicode CMap Parsing

Summary

BabelDOC from 0.3.61 before 0.7.0 contains a resource exhaustion vulnerability that allows remote attackers to exhaust CPU and memory by supplying unbounded bfrange and cidrange spans. Attackers can submit a crafted PDF whose embedded ToUnicode CMap declares a huge range, driving billions of loop iterations and stalling the translation worker.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-09 14:16 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

VulnCheck CNA

References

6 references

URL	Tags
https://github.com/funstory-ai/BabelDOC/security/…	vendor-advisory
https://github.com/funstory-ai/BabelDOC/commit/39…	patch
https://github.com/funstory-ai/BabelDOC/blob/main…	release-notes
https://github.com/funstory-ai/BabelDOC/blob/v0.6…	technical-description
https://github.com/funstory-ai/BabelDOC/blob/v0.6…	technical-description
https://www.vulncheck.com/advisories/babeldoc-fro…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
funstory-ai	BabelDOC	Affected: 0.3.61 , < 0.7.0 (semver)

Date Public

2026-11-07 21:44

Credits

Zachariah Mithani (AploSec) awwaawwa

Show details on NVD website

JSON

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                "id": "CVE-2026-124553",
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          "name": "VulnCheck Advisory: BabelDOC from 0.3.61 before 0.7.0 Denial of Service via ToUnicode CMap Parsing",
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CVE-2026-54071 (GCVE-0-2026-54071)

Vulnerability from cvelistv5 – Published: 2026-08-21 18:55 – Updated: 2026-08-21 21:43

Title

BabelDOC: Arbitrary Code Execution via CMap Pickle Deserialization in babeldoc/pdfminer/cmapdb.py

Summary

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.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 21:00 UTC

CWE

CWE-502 - Deserialization of Untrusted Data