PT-2026-31862

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description The ECCSI signature verifier wc VerifyEccsiHash in wolfSSL decodes the r and s scalars from the signature blob using mp read unsigned bin without verifying that these values fall within the...

CVE-2026-5188

An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name SAN extension of X.509 certificates. A malformed certificate can specify an entry length larger than the enclosing sequence, causing the internal length counter to wrap during parsing. This results in incorrect...

CVE-2026-5479

In wolfSSL's EVP layer, the ChaCha20-Poly1305 AEAD decryption path in wolfSSLEVPCipherFinal and related EVP cipher finalization functions fails to verify the authentication tag before returning plaintext to the caller. When an application uses the EVP API to perform ChaCha20-Poly1305 decryption,...

CVE-2026-5460

A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography PQC hybrid KeyShare processing. In the error handling path of TLSXKeyShareProcessPqcHybridClient in src/tls.c, the inner function TLSXKeyShareProcessPqcClientex frees a KyberKey object upon encountering an error. The call...

CVE-2026-5466

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

Linux Distros Unpatched Vulnerability : CVE-2026-5446

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce for every application-data record. Because wcAriaEncrypt is...

Linux Distros Unpatched Vulnerability : CVE-2026-5500

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL's wcPKCS7DecodeAuthEnvelopedData does not properly sanitize the AES-GCM authentication tag length received and has no lower bounds check. A...

Linux Distros Unpatched Vulnerability : CVE-2026-5466

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1,...

Linux Distros Unpatched Vulnerability : CVE-2026-5501

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSLX509verifycert in the OpenSSL compatibility layer accepts a certificate chain in which the leaf's signature is not checked, if the attacker supplies an...

Linux Distros Unpatched Vulnerability : CVE-2026-5393

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Dual-Algorithm CertificateVerify out-of-bounds read. When processing a dual-algorithm CertificateVerify message, an out-of-bounds read can occur on crafted inpu...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, designed for developers working with embedded systems. There is a security vulnerability in wolfSSL, which stems from an out-of-bounds read during the processing of double-algorithm...

wolfSSL（CyaSSL） 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, aimed at developers working with embedded systems. There is a security vulnerability in wolfSSL, where the ECCSI signature verifier does not check the scalar range, allowing specially...

wolfSSL（CyaSSL） 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the US company wolfSSL, designed for developers working with embedded systems. There are security vulnerabilities in wolfSSL CyaSSL, particularly related to the wcPKCS7DecodeAuthEnvelopedData function. This function...

PT-2026-31863

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description The software fails to verify the authentication tag during ChaCha20-Poly1305 AEAD decryption, potentially returning plaintext to the caller even with an invalid tag. This occurs in the EVP...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, designed for developers working with embedded systems. There is a security vulnerability in wolfSSL, which stems from a buffer overflow issue during the parsing of X.509 certificate dat...

wolfSSL（CyaSSL） 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the US company wolfSSL, designed for developers working with embedded systems. wolfSSL CyaSSL contains a security vulnerability that stems from the handling of mixed key sharing in TLS 1.3 and post-quantum...

Linux Distros Unpatched Vulnerability : CVE-2026-5504

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A padding oracle exists in wolfSSL's PKCS7 CBC decryption that could allow an attacker to recover plaintext through repeated decryption queries with modified...

Linux Distros Unpatched Vulnerability : CVE-2026-5503

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In TLSXEchChangeSNI, the ctx-extensions branch set extensions unconditionally even when TLSXFind returned NULL. This caused TLSXUseSNI to attach the...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, aimed at developers working with embedded systems. There is a security vulnerability in wolfSSL. This vulnerability stems from the wolfSSLX509verifycert function within the OpenSSL...

Linux Distros Unpatched Vulnerability : CVE-2026-5448

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - X.509 date buffer overflow in wolfSSLX509notAfter / wolfSSLX509notBefore. A buffer overflow may occur when parsing date fields from a crafted X.509 certificate...