CVE•Published 2026-08-06•Modified 2026-08-07•1 article on news•5 live references•NVD data
CVE-2026-65583Apache · Cxf
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
—
Weaknesses (CWE)
Description
Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks (issuer/subject/audience/time and sub_jwk binding), enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in the validator. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fixes this issue.
Timeline
Published 2026-08-06
Modified 2026-08-07
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-2026-65583Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Apache Cxf"All exposed Apache Cxf instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Cxf"HTTP body or banner mentions "Cxf" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-65583Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-65583Censys host search filtered to this CVE id.
grep.app
CVE-2026-65583Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-65583GitHub code search for direct mentions.
Google dork
"CVE-2026-65583" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-65583 on GitHub.