CVE-2026-115347

Published: Ott 22, 2026 Last Modified: Ott 22, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

Mistune before 3.3.0 contains an inefficient algorithmic complexity vulnerability in parse_link_text that allows remote attackers to cause denial of service through unbalanced square brackets. Attackers can submit markdown containing long runs of unmatched brackets to mistune.html(), triggering repeated forward scans that stall worker processes for minutes.

407

Inefficient Algorithmic Complexity

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Low
View CWE Details
https://github.com/lepture/mistune/security/advisories/GHSA…
https://github.com/lepture/mistune/security/advisories/GHSA-f32h-38gf-rg5r
https://www.vulncheck.com/advisories/mistune-before-3.3.0-q…
https://www.vulncheck.com/advisories/mistune-before-3.3.0-quadratic-denial-of-s…