1764 matches found
CVE-2026-82208: Improper Certificate Validation
With the wolfSSL backend, when CA caching is enabled and an CURLOPTSSLCTXFUNCTION callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectl...
CURL-CVE-2026-82208 wolfSSL CA-cache hit overrides callback
With the wolfSSL backend, when CA caching is enabled and an CURLOPTSSLCTXFUNCTION callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectl...
wolfSSL CA-cache hit overrides callback
With the wolfSSL backend, when CA caching is enabled and an CURLOPTSSLCTXFUNCTION callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectl...
PT-2026-84658
Name of the Vulnerable Software and Affected Versions libcurl affected versions not specified Description When using the wolfSSL backend with CA caching enabled, a flaw exists where the CURLOPT SSL CTX FUNCTION callback can be overridden. If this callback replaces the trust store, libcurl may...
K000163154: wolfSSL vulnerability CVE-2026-5194
Security Advisory Description Missing hash/digest size and OID checks allow digests smaller than allowed when verifying ECDSA certificates, or smaller than is appropriate for the relevant key type, to be accepted by signature verification functions. This could lead to reduced security of ECDSA...
curl: CVE-2026-82208: wolfSSL CA-cache hit overrides callback
Summary With the wolfSSL backend, when CA caching is enabled and an CURLOPTSSLCTXFUNCTION callback replaces the trust store, curl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then...
ANT-2026-87DJGDRB · wolfssl · Heap-buffer-overflow
heap-buffer-overflow low CVE-2026-12340 GHSA-q349-x427-xg3w Severity Claude high · Security research firm high · Maintainer low Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-87DJGDRB: Heap-buffer-overflow in sha.c:733 When...
K000162843: wolfSSL vulnerability CVE-2026-11310
Security Advisory Description X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra OPENSSLEXTRA and whose application validates certificates by calling X509verifycert with caller-supplied untrusted...
K000162842: wolfSSL vulnerability CVE-2026-55961
Security Advisory Description wolfSSLPKCS7verify returning success for a degenerate certs-only PKCS7 object that contains no signer. Such an object has empty signerInfos, so the underlying signed-data verification succeeds without authenticating any content. The compatibility-layer verify path no...
K000162694: WolfSSL vulnerabilities CVE-2026-6092, CVE-2026-6331, and CVE-2026-55964
Security Advisory Description CVE-2026-6092 When HAVEENCRYPTTHENMAC is configured, the implementation could fall back to MAC-then-Encrypt rather than enforcing Encrypt-then-MAC. CVE-2026-6331 HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid...
CVE-2026-54919
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In affected Mbed TLS backend versions from 0.31.0 through 0.46.1 and wolfSSL backend versions from 0.33.0 through 0.46.1, when cpp-httplib is built with CPPHTTPLIBMBEDTLSSUPPORT or CPPHTTPLIBWOLFSSLSUPPORT and a...
SUSE CVE-2026-54919
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In affected Mbed TLS backend versions from 0.31.0 through 0.46.1 and wolfSSL backend versions from 0.33.0 through 0.46.1, when cpp-httplib is built with CPPHTTPLIBMBEDTLSSUPPORT or CPPHTTPLIBWOLFSSLSUPPORT and a...
[SECURITY] [DLA 4683-1] wolfssl security update
----------------------------------------------------------------------- Debian LTS Advisory DLA-4683-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta July 15, 2026 https://wiki.debian.org/LTS - -----------------------------------------------------------------------...
Debian dla-4683 : libwolfssl-dev - security update
The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4683 advisory. - ----------------------------------------------------------------------- Debian LTS Advisory DLA-4683-1 [email protected]...
JLSEC-2026-731 In `TLSX_EchChangeSNI`, the ctx->extensions branch set extensions unconditionally even when...
In TLSXEchChangeSNI, the ctx-extensions branch set extensions unconditionally even when TLSXFind returned NULL. This caused TLSXUseSNI to attach the attacker-controlled publicName to the shared WOLFSSLCTX when no inner SNI was configured. TLSXEchRestoreSNI then failed to clean it up because its...
JLSEC-2026-673
In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list ...
JLSEC-2026-678 In wolfSSL prior to 5.6.6, if callback functions are enabled (via the `WOLFSSL_CALLBACKS` flag),...
In wolfSSL prior to 5.6.6, if callback functions are enabled via the WOLFSSLCALLBACKS flag, then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes WOLFSSLCALLBACKS is only intended for debugging...
JLSEC-2026-725 A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare...
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...
JLSEC-2026-741 Integer underflow in wolfSSL packet sniffer <= 5.9.0 allows an attacker to cause a program crash in...
Integer underflow in wolfSSL packet sniffer = 5.9.0 allows an attacker to cause a program crash in the AEAD decryption path by injecting a TLS record shorter than the explicit IV plus authentication tag into traffic inspected by sslDecodePacket. The underflow wraps a 16-bit length to a large valu...
JLSEC-2026-732 A padding oracle exists in wolfSSL's PKCS7 CBC decryption that could allow an attacker to recover...
A padding oracle exists in wolfSSL's PKCS7 CBC decryption that could allow an attacker to recover plaintext through repeated decryption queries with modified ciphertext. In previous versions of wolfSSL the interior padding bytes are not validated...