CVE-2026-95208 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause denial of service in wolfSSL-based TLS clients by providing crafted CA certificates that incorrectly reject valid certificates.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-95208?

CVE-2026-95208 is a high-severity denial of service vulnerability in n/a, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in the ConfirmNameConstraints() function (wolfcrypt/src/asn.c) of wolfSSL v5.9.1 and v5.9.2 allows attackers to cause a Denial of Service (DoS) via providing crafted Certificate Authority certificates, leading to valid certificates without SAN to be incorrectly rejected by wolfSSL-based TLS clients.

Weakness: CWE-295

Which versions are affected by CVE-2026-95208?

How do I fix CVE-2026-95208?

No fix has been published for CVE-2026-95208 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-95208 being exploited?

There is no known exploitation of CVE-2026-95208 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-95208, GHSA-vf9w-2hh8-xxhh, UBUNTU-CVE-2026-95208.

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