Details
- Type
- Denial of Service
- Impact
- Denial Of Service
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 28 October 2026
- Updated
- 29 October 2026
- Weakness
- CWE-407
Vendor fix
Update to the latest version of python-markdown2.
Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-118694
- https://github.com/trentm/python-markdown2/blob/2.5.5/lib/markdown2.py#L3029
- https://github.com/trentm/python-markdown2/issues/750
- https://github.com/trentm/python-markdown2/pull/751
- https://www.vulncheck.com/advisories/python-markdown2-through-2.5.5-denial-of-service-via-unclosed-inline-link-destinations
- https://github.com/trentm/python-markdown2
- https://github.com/trentm/python-markdown2/blob/2.5.5/lib/markdown2.py#L1478-L1492