CVE-2026-89136

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Source

https://cve.org/CVERecord?id=CVE-2026-89136

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89136.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-89136

Downstream

Published

2026-09-27T09:12:39Z

Modified

2026-09-30T03:30:59Z

Severity

8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Client accepts unsolicited RawPublicKey server certificate type

Details

When using RPK (Raw Public Key), the client side of a TLS 1.2, 1.3 and DTLS 1.2 connection could accept an unsolicited server_cert_type=RawPublicKey which allowed a malicious or misbehaving server to bypass authentication. RPK is off by default and only enabled in --enable-rpk OR --enable-all OR --enable-distro AKA HAVE_RPK builds.

Database specific

{
    "cna_assigner":  "wolfSSL",
    "cwe_ids":  [
        "CWE-287"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89136.json"
}

References

Affected packages

Git / github.com/wolfssl/wolfssl

Affected ranges

Type

GIT

Repo

https://github.com/wolfssl/wolfssl

Events

Introduced

979707380c677dfa65e3ba48f19e149773a4a32d

Last Affected

ac01707f552c611fbd135cc723b2682b3e7f80f2

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "5.6.0"
        },
        {
            "last_affected":  "5.9.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v5.*

v5.2.1

v5.6.0-stable

v5.6.2-stable

v5.6.3-stable

v5.6.4-stable

v5.6.6-stable

v5.7.0-stable

v5.7.2-stable

v5.7.4-stable

v5.7.6-stable

v5.8.0-stable

v5.8.2-stable

v5.8.4-stable

v5.9.0-stable

v5.9.1-stable

v5.9.2-stable

Other

wolfEntropy1

wolfEntropy2d

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89136.json"