CVE-2026-88753 | markdown2 up to 2.5.5 lib/markdown2.py extract_metadata redos

October 15, 2026 Yanac

A vulnerability marked as problematic has been reported in markdown2 up to 2.5.5. This affects the function extract_metadata of the file lib/markdown2.py. This manipulation causes inefficient regular expression complexity.

This vulnerability is tracked as CVE-2026-88753. The attack is possible to be carried out remotely. No exploit exists.VulDB Recent EntriesRead More