CVE-2026-82208

In libcurl versions 8.9.1 through 8.21.0 using the wolfSSL backend , a logic error in lib/vtls/wolfssl.c allows the library to silently reinstall a cached X509 store, bypassing security restrictions. When CA caching is enabled and a CURLOPT_SSL_CTX_FUNCTION callback is used to provide a specific ...

CVE-2026-82208

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...

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...

EUVD-2026-72152

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...

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...

CVE-2026-82208

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...

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]...