Python-Markdown
CVE-2019-25781: Python-Markdown 3.0 through 3.11.2 contains an algorithmic complexity vulnerability in inline link parsing that allows remote attackers to exhaust CPU through u
CVE-2019-25781 Oct 29, 2026 Source: Vendor
Python-Markdown 3.0 through 3.11.2 contains an algorithmic complexity vulnerability in inline link parsing that allows remote attackers to exhaust CPU through unmatched brackets. Attackers can submit short Markdown containing repeated [ or ![ characters, forcing LinkInlineProcessor.getText() and getLink() into quadratic scans that keep workers busy for minutes.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2019-25781
Are you credited here? Sign in to claim your line. It is yours immediately, with no review queue. The name the vendor printed stays next to your handle for anyone to check against the advisory above, and any member who thinks a claim is wrong can refute it.
Credited
2 lines
Showing 1–2 of 2 matching , clear filters
CVE-2019-25781
BR2026-0000-038124
unclaimed
Credited as Anders Kaseorg
CVE-2019-25781
BR2026-0000-038125
unclaimed
Credited as Muhammadyusuf Dilmurodov (agrresore)