Missing Authentication for Critical Function

Overview wolfssl is a Python module that encapsulates wolfSSL's C SSL/TLS library. Affected versions of this package are vulnerable to Missing Authentication for Critical Function due to improper enforcement of client certificate requirements in the CERTREQUIRED process. An attacker can gain...

CVE-2025-15346 wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement

A vulnerability in the handling of verifymode = CERTREQUIRED in the wolfssl Python package wolfssl-py causes client certificate requirements to not be fully enforced. Because the WOLFSSLVERIFYFAILIFNOPEERCERT flag was not included, the behavior effectively matched CERTOPTIONAL: a peer certificate...

CVE-2025-15346

The wolfssl-py Python package is affected by CVE-2025-15346 due to improper enforcement of client certificate requirements when verify_mode is CERT_REQUIRED. The root cause is failure to include WOLFSSL_VERIFY_FAIL_IF_NO_PEER_CERT, making behavior effectively CERT_OPTIONAL: a peer certificate is ...

CVE-2025-15346 wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement

A vulnerability in the handling of verifymode = CERTREQUIRED in the wolfssl Python package wolfssl-py causes client certificate requirements to not be fully enforced. Because the WOLFSSLVERIFYFAILIFNOPEERCERT flag was not included, the behavior effectively matched CERTOPTIONAL: a peer certificate...

CVE-2025-15346 wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement

A vulnerability in the handling of verifymode = CERTREQUIRED in the wolfssl Python package wolfssl-py causes client certificate requirements to not be fully enforced. Because the WOLFSSLVERIFYFAILIFNOPEERCERT flag was not included, the behavior effectively matched CERTOPTIONAL: a peer certificate...

CVE-2019-16748

In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignatureex in wolfcrypt/src/asn.c...

Medium: curl

Issue Overview: When asked to both use a .netrc file for credentials and to follow HTTP redirects, curl could leak the password used for the first host to the followed-to host under certain circumstances. This flaw only manifests itself if the netrc file has an entry that matches the redirect...

PT-2026-1769

Name of the Vulnerable Software and Affected Versions wolfssl-py versions up to and including 5.8.2 Description A flaw exists in the handling of verify mode = CERT REQUIRED within the wolfssl Python package wolfssl-py. The absence of the WOLFSSL VERIFY FAIL IF NO PEER CERT flag causes the softwar...

PT-2026-26329

Protection mechanism failure in wolfCrypt post-quantum implementations ML-KEM and ML-DSA in wolfSSL on ARM Cortex-M microcontrollers allows a physical attacker to compromise key material and/or cryptographic outcomes via induced transient faults that corrupt or redirect seed/pointer values during...

PT-2026-26327

Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs,...

PT-2026-26340

Name of the Vulnerable Software and Affected Versions wolfSSL version 5.8.4 Description The software contains a flaw in the constant-time masking logic within the sp 256 get entry 256 9 function. When compiled with GCC targeting RISC-V RV32I using the -O3 optimization flag, the logic is altered...

curl: Certificate Pinning Bypass with wolfSSL backend over HTTP/3

Summary: A security feature bypass exists in libcurl when built with the wolfSSL backend and HTTP/3 support. The Certificate Pinning feature --pinnedpubkey is silently ignored if the user also disables peer verification -k or --insecure . This behavior is inconsistent with other backends like...

CVE-2025-13912

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

CVE-2025-13912

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

UBUNTU-CVE-2025-13912

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

CVE-2025-13912 Potential non-constant time compiled code with Clang LLVM

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

CVE-2025-13912

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

CVE-2025-13912

CVE-2025-13912 affects wolfSSL before 5.8.4. Multiple constant-time implementations may be transformed into non-constant-time binaries by LLVM optimizations, potentially causing observable timing differences and information disclosure via timing side-channel attacks. Affected platforms include, p...

CVE-2025-13912 Potential non-constant time compiled code with Clang LLVM

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

CVE-2025-13912

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...