Vulnerability DatabaseCVE-2026-124553
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-124553
Published:November 08, 2026
Updated:November 09, 2026
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.
Affected Packages
https://github.com/funstory-ai/BabelDOC.git (GITHUB):
Affected version(s) >=v0.3.61 <v0.7.0
Fix Suggestion:
Update to version v0.7.0
Related Resources (9)
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/124xxx/CVE-2026-124553.json
https://nvd.nist.gov/vuln/detail/CVE-2026-124553
https://github.com/funstory-ai/BabelDOC
https://github.com/funstory-ai/BabelDOC/blob/v0.6.4/babeldoc/format/pdf/new_parser/runtime/to_unicode_parser_runtime.py#L150-L158
https://github.com/funstory-ai/BabelDOC/blob/v0.6.4/babeldoc/pdfminer/cmapdb.py#L378-L389
https://github.com/funstory-ai/BabelDOC/blob/main/docs/release-notes/v0.7.0.md
https://www.vulncheck.com/advisories/babeldoc-from-0.3.61-before-0.7.0-denial-of-service-via-tounicode-cmap-parsing
https://github.com/funstory-ai/BabelDOC/commit/39a6e9eafeecd39404b94b2f71e88ea058753dd5
https://github.com/funstory-ai/BabelDOC/security/advisories/GHSA-wrv8-h9rp-6fqq
Do you need more information?
Contact Us
CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
CWE-770
EPSS
Base Score:
0.54