CVE•Published 2026-10-22•Modified 2026-10-23•0 articles on news•3 live references•NVD data
CVE-2026-115352
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-10-22
Modified 2026-10-23
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-115352Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-115352Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-115352Censys host search filtered to this CVE id.
grep.app
CVE-2026-115352Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-115352GitHub code search for direct mentions.
Google dork
"CVE-2026-115352" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-115352 on GitHub.
We haven't classified any articles referencing CVE-2026-115352 yet. The external references above still apply.