CVE•Published 2026-07-08•Modified 2026-07-09•0 articles on news•4 live references•NVD data
CVE-2026-59927Mistune_project · Mistune
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS percentile
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Description
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the Include directive in src/mistune/directives/include.py detects only direct self-includes and not indirect cycles, allowing two markdown files that include each other to trigger unbounded recursion, raise RecursionError, and crash the rendering request. This issue is fixed in version 3.3.0.
Timeline
Published 2026-07-08
Modified 2026-07-09
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). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2026-59927Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Mistune Project Mistune"All exposed Mistune Project Mistune instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Mistune"HTTP body or banner mentions "Mistune" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-59927Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-59927Censys host search filtered to this CVE id.
grep.app
CVE-2026-59927Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-59927GitHub code search for direct mentions.
Google dork
"CVE-2026-59927" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-59927 on GitHub.
We haven't classified any articles referencing CVE-2026-59927 yet. The external references above still apply.