CVE•Published 2026-05-22•Modified 2026-09-15•1 article on news•4 live references•NVD data
CVE-2026-42508Golang · Crypto
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
94
Exploit Prediction Scoring System · top 6% of all CVEs
Weaknesses (CWE)
Description
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.
Timeline
Published 2026-05-22
Modified 2026-09-15
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-2026-42508Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Golang Crypto"All exposed Golang Crypto instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Crypto"HTTP body or banner mentions "Crypto" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-42508Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-42508Censys host search filtered to this CVE id.
grep.app
CVE-2026-42508Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-42508GitHub code search for direct mentions.
Google dork
"CVE-2026-42508" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-42508 on GitHub.