CVE-2026-115352

HighCVSS 7.5/10Last modified Oct 23, 2026

Description

Mistune before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser that allows unauthenticated attackers to exhaust CPU by submitting long runs of unmatched '[' characters. Attackers can send small markdown payloads that trigger O(N^2) parse_link_text and parse_link_label probing, occupying rendering workers for 30+ seconds per 16 KB input.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-407

Affected software

No affected versions have been published.

Timeline

Published: Oct 22, 2026
Last modified: Oct 23, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-1153538.6Mistune before 3.3.0 contains a path traversal vulnerability in the RST include directive that allows attackers to read arbitrary files by s CVE-2026-1153546.5Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that allows attackers to read local files by su CVE-2026-1153557.5Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read arbitrary files by suppl CVE-2026-1153565.4OpenBao before 2.6.4 and 2.7.x before 2.7.1 does not verify, when renewing a token issued by the Kubernetes Auth method, that the service ac CVE-2026-1153572.2OpenBao before 2.6.4 and 2.7.x before 2.7.1 fails to write response audit entries for the unauthenticated sys/generate-root, sys/rekey, and CVE-2026-1153582.0OpenBao before 2.6.3 contains an information disclosure vulnerability that allows attackers to leak sensitive data into audit logs by sendin CVE-2026-1153593.7OpenBao before 2.6.4 and 2.7.x before 2.7.1 contains a flaw in its rate limit quota subsystem where role resolution fails for requests with CVE-2026-115368.5IBM WebSphere Application Server 9.0, and 8.5 is affected by a remote code execution vulnerability in the SOAP/JMX connector.CVE-2026-1153604.7OpenBao before 2.6.3 contains an open redirect vulnerability in the UI's OIDC identity provider that affects users not authenticated to Open CVE-2026-1153614.1OpenBao before 2.6.3 contains an ACL bypass vulnerability that silently drops explicit deny rules based on forbidden identity metadata templ CVE-2026-1153622.2OpenBao before 2.6.4 and 2.7.x before 2.7.1 does not check Secret ID expiration at use in the AppRole auth method, leaving expired Secret ID CVE-2026-1153633.3OpenBao 2.2.0 before 2.6.4 and 2.7.0 before 2.7.1 contains an information disclosure vulnerability that exposes the tls_acme_eab_mac_key val