HIGHCVSS v3.1 7.5Vulnerability

CVE-2026-118694

python-markdown2 through 2.5.5 contains a denial of service vulnerability that allows remote users to exhaust CPU by submitting Markdown with unclosed inline link destinations. Attackers can submit repeated '[a](' or '![a](' sequences, causing _find_balanced to rescan the remaining document for each link and consume quadratic CPU time.

Properties

Severity
HIGH
Nvd fetched at
2026-10-28T23:43:43.157973+00:00
Cvss severity
HIGH
Cvss score
7.5
Retrieved at
2026-10-28T23:44:40+00:00
Score
7.5
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-118694
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
First seen by Signal
2026-10-28T23:44:40+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published at
2026-10-28T22:17:13.700
Last modified
2026-10-28T22:17:13.700

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Inefficient Algorithmic Complexity

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CVE-2026-118694 (CVSS v3.1 7.5) — Ninja Signal Threat Intelligence | Ninja Signal