CVE-2026-10098
MEDIUMOCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status
Title source: cnaDescription
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be reported as the revocation status of a different certificate. The lookup compared serial-number bytes without first requiring the two serial numbers to be of equal length, so a SingleResponse for one certificate (same issuer) whose serial is a prefix of the target's serial would match, returning the wrong certificate's status. The fix requires the serial lengths to be equal before comparing the serial bytes.
References (2)
Core 2
Core References
Patch patch
https://github.com/wolfSSL/wolfssl/pull/10554
Scores
CVSS v3
5.3
EPSS
0.0012
EPSS Percentile
2.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-295
Status
published
Products (2)
wolfSSL/wolfSSL
4.6.0 - 5.9.1
wolfssl/wolfssl
4.6.0 - 5.9.2
Published
Jun 25, 2026
Tracked Since
Jun 26, 2026