CVE•Published 2026-04-23•Modified 2026-04-24•1 article on news•5 live references•NVD data
CVE-2026-40471
Vulnerability data via NVD (ingested)
CVSS v3.1
9.6
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
EPSS percentile
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Weaknesses (CWE)
Description
hackage-server lacked Cross-Site Request Forgery (CSRF) protection across its endpoints. Scripts on foreign sites could trigger requests to hackage server, possibly abusing latent credentials to upload packages or perform other administrative actions. Some unauthenticated actions could also be abused (e.g. creating new user accounts).
Timeline
Published 2026-04-23
Modified 2026-04-24
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-40471Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-40471Censys host search filtered to this CVE id.
grep.app
CVE-2026-40471Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-40471GitHub code search for direct mentions.
Google dork
"CVE-2026-40471" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-40471 on GitHub.