CVE•Published 2026-04-08•Modified 2026-09-18•1 article on news•4 live references•NVD data
CVE-2026-33810Golang · Go
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS percentile
27
Exploit Prediction Scoring System · top 73% of all CVEs
Weaknesses (CWE)
Description
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
Timeline
Published 2026-04-08
Modified 2026-09-18
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-2026-33810Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Golang Go"All exposed Golang Go instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Go"HTTP body or banner mentions "Go" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-33810Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-33810Censys host search filtered to this CVE id.
grep.app
CVE-2026-33810Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-33810GitHub code search for direct mentions.
Google dork
"CVE-2026-33810" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.