EUVD-2026-42942

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...

CVE-2026-54919 cpp-httplib: TLS certificate chain verification bypassed for IP-literal hosts on Mbed TLS and wolfSSL backends

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...

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...

CVE-2026-54919

cpp-httplib on Mbed TLS and wolfSSL backends was vulnerable to a TLS certificate chain verification bypass for IP-literal hosts (affecting v0.31.0–0.46.1) when server verification was enabled; SSLClient/Client could skip chain validation and Mbed TLS WebSocketClient could skip verification. The i...

CVE-2026-54919 cpp-httplib: TLS certificate chain verification bypassed for IP-literal hosts on Mbed TLS and wolfSSL backends

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...

CVE-2026-54919: Improper Certificate Validation

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...

PT-2026-57218

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 CPPHTTPLIB MBEDTLS SUPPORT or CPPHTTPLIB WOLFSSL SUPPORT and a...

WolfSSL, GeoVision, VTK vulnerabilities

Cisco Talos' Vulnerability Discovery & Research team recently disclosed three vulnerabilities in WolfSSF, fourteen in GeoVision, and one vulnerability in VTK-DICOM. The vulnerabilities mentioned in this blog post have been patched by their respective vendors, in adherence to Cisco 's third-party...

PYSEC-2026-1066 wolfCrypt leaks cryptographic information via timing side channel

wolfSSL and wolfCrypt 4.0.0 and earlier when configured without --enable-fpecc, --enable-sp, or --enable-sp-math contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about th...

Fedora 43 : cpp-httplib (2026-1d4bd0354a)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1d4bd0354a advisory. Update to 0.48.0 rhbz2481109 Security fixes - Complete the IP-host certificate identity fix from v0.47.0 for the Mbed TLS and wolfSSL backends. An...

Fedora 44 : cpp-httplib (2026-1b15ac058b)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1b15ac058b advisory. Update to 0.48.0 rhbz2481109 Security fixes - Complete the IP-host certificate identity fix from v0.47.0 for the Mbed TLS and wolfSSL backends. An...

WolfSSL wolfSSL X.509 registeredID name constraints enforcement improper input validation vulnerability

Summary A improper input validation vulnerability exists in the X.509 registeredID name constraints enforcement functionality of wolfSSL versions: 5.9.1. A specially crafted X.509 certificate chain can lead to bypass registeredID name constraints. An attacker can present a certificate with a...

WolfSSL wolfSSL X.509 iPAddress name constraints enforcement improper input validation vulnerability

Summary A improper input validation vulnerability exists in the X.509 iPAddress name constraints enforcement functionality of wolfSSL versions: 5.9.1. A specially crafted X.509 certificate chain can lead to bypass of iPAddress name constraints. An attacker can present a certificate with an IP SAN...

WolfSSL wolfSSL PKCS#7 OtherRecipientInfo integer underflow vulnerability

Summary A integer underflow vulnerability exists in the PKCS7 OtherRecipientInfo functionality of wolfSSL versions: 5.9.1. A specially crafted malformed ASN.1 record can lead to a heap buffer overflow. An attacker can arbitrary code execution to trigger this vulnerability. Confirmed Vulnerable...

Linux Distros Unpatched Vulnerability : CVE-2026-10097

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL's AVX2-optimized ML-KEM implementation mlkemcmpavx2 compares only 1536 of the 1568 ciphertext bytes during the Fujisaki-Okamoto re-encryption check in...

Linux Distros Unpatched Vulnerability : CVE-2026-11310

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra OPENSSLEXT...

Linux Distros Unpatched Vulnerability : CVE-2026-6681

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The PKCS7 decode path ignores the caller-supplied output buffer size outputSz, allowing decoded content to be written past the bounds of the provided buffer. Th...

Linux Distros Unpatched Vulnerability : CVE-2026-7532

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iPAddress name constraints bypass when WOLFSSLIPALTNAME is not defined. IP address name constraints are not enforced in that configuration, allowing a certifica...

Linux Distros Unpatched Vulnerability : CVE-2026-6291

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bleichenbacher padding oracle in PKCS7 KTRI decryption. When decrypting PKCS7 EnvelopedData using RSA PKCS1 v1.5 key transport, wolfSSL returned distinguishable...

Linux Distros Unpatched Vulnerability : CVE-2026-10098

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OCSP CertID serial-number length-confusion in wolfSSLOCSPrespfindstatus allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be...