CVE-2026-93578
5.9 MEDIUMPublished 2026-09-18 · Updated 2026-09-18
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
A flaw was found in Netty's Online Certificate Status Protocol (OCSP) Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage (EKU) in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority (CA), can exploit this by forging 'GOOD' OCSP responses for revoked certificates. This bypasses certificate revocation checks, allowing applications using Netty's OCSP Client to accept certificates that should have been revoked, leading to an authorization bypass.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-1035
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- MEDIUMCVE-2026-93492
- HIGHCVE-2026-93558
- HIGHCVE-2026-93560
- MEDIUMCVE-2026-93561
- MEDIUMCVE-2026-93562
- HIGHCVE-2026-93563
- HIGHCVE-2026-93564
- HIGHCVE-2026-93565
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