CVE-2026-124553 json
BabelDOC from 0.3.61 before 0.7.0 Denial of Service via ToUnicode CMap Parsing
published 2026-11-08 13 h ago modified 2026-11-08 12 h ago also EUVD-2026-119609
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no EPSS score yet
- public exploits
- 0
- none known
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.
Patch / fix
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.7 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- funstory-ai BabelDOC
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
github.com
/funstory-ai/BabelDOC/commit/39a6e9eafeecd39404b94b2f71e88ea058753dd5
patch
-
github.com
/funstory-ai/BabelDOC/security/advisories/GHSA-wrv8-h9rp-6fqq
vendor-advisory
-
github.com
/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.7.0.md
release-notes
-
github.com
/funstory-ai/BabelDOC/blob/v0.6.4/babeldoc/pdfminer/cmapdb.py#L378-L389
technical-description
-
github.com
/funstory-ai/BabelDOC/blob/v0.6.4/babeldoc/format/pdf/new_parser/runtime/to_unicode_parser_runtime.py#L150-L15
technical-description
-
vulncheck.com
/advisories/babeldoc-from-0.3.61-before-0.7.0-denial-of-service-via-tounicode-cmap-parsing
third-party-advisory
Sources
- CVE List CVE-2026-124553
- NVD CVE-2026-124553
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.