155 matches found
Double Free
Overview Affected versions of this package are vulnerable to Double Free in the certificate verification path, in the TLS client's OCSP stapling response handling. An attacker operating a malicious server can deliver an OCSP response via the statusrequest extension that corrupts heap memory and...
CVE-2026-35188
Issue summary: A malicious server can exploit TLS OCSP stapling by delivering a crafted response through the statusrequest extension, triggering a double-free in the client's certificate verification path. Impact summary: Successful exploitation allows an attacker to corrupt heap memory via a...
CVE-2026-35188
A double-free vulnerability exists in the OpenSSL library (specifically affecting packages like openssl and libcrypto3-2.34) when processing TLS OCSP stapling . A malicious server can deliver a crafted response through the status_request extension, triggering the double-free during the client's c...
OpenSSL Security Advisory 20260609
OpenSSL is susceptible to multiple security vulnerabilities. A specially crafted PKCS7 or S/MIME signed message could trigger a use-after-free during PKCS7 signature verification. The Cryptographic Message Services CMS processing fails to perform sufficient input validation on the cipher and tag...
CVE-2026-35188: Double Free
Issue summary: A malicious server can exploit TLS OCSP stapling by delivering a crafted response through the statusrequest extension, triggering a double-free in the client's certificate verification path. Impact summary: Successful exploitation allows an attacker to corrupt heap memory via a...
Double-free When Checking OCSP Stapled Response
Issue summary: A malicious server can exploit TLS OCSP stapling by delivering a crafted response through the statusrequest extension, triggering a double-free in the client’s certificate verification path. Impact summary: Successful exploitation allows an attacker to corrupt heap memory via a...
CVE-2026-42791
A flaw was found in Erlang OTP's publickey application, specifically in the Online Certificate Status Protocol OCSP response verification. A remote attacker who has obtained the private key of an expired Certificate Authority CA-designated OCSP responder certificate can forge OCSP responses. This...
curl: GnuTLS OCSP stapling accepts unrelated SingleResponse (no cert-ID binding)
Summary This report describes a variant of the publicly disclosed curl vulnerability CVE-2020-8286 OCSP stapling verification bypass, found in the GnuTLS TLS backend lib/vtls/gtls.c. The original CVE affected the NSS backend; this variant reproduces the same logical class of defect — accepting...
CVE-2026-42791
Summary: CVE-2026-42791 is an improper certificate validation weakness in Erlang OTP’s public_key/pubkey_ocsp module. OCSP response verification (pubkey_ocsp:verify_response/5 and pubkey_ocsp:is_authorized_responder/3) fails to enforce the validity period (notBefore/notAfter) of the OCSP responde...
CVE-2026-42791: Improper Certificate Validation
Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows forged OCSP responses signed with an expired responder certificate to be accepted as valid. OCSP response verification in pubkeyocsp:verifyresponse/5 and pubkeyocsp:isauthorizedresponder/3 in...
Erlang/OTP -- OCSP responder certificate accepted after expiry in public_key
https://github.com/erlang/otp/security/advisories/GHSA-cjxj-wj6x-3fff reports: Erlang/OTP's publickey application fails to validate the validity period of OCSP responder certificates during response verification. An attacker possessing an expired OCSP responder's private key can forge responses...
CVE-2026-7009
When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine...
CVE-2026-7009: Improper Certificate Validation
When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine...
Incorrect Behavior Order: Early Validation
Overview Affected versions of this package are vulnerable to Incorrect Behavior Order: Early Validation in the OCSP stapling process. An attacker can cause a client to accept a revoked server certificate by presenting a specially crafted multi-record OCSP response during a TLS handshake...
curl: CVE-2026-7009: OCSP stapling bypass with Apple SecTrust
Summary When curl is built with --with-apple-sectrust or -DUSEAPPLESECTRUST=ON and OpenSSL, the --cert-status / CURLOPTSSLVERIFYSTATUS option is silently bypassed when Apple SecTrust handles certificate chain verification instead of OpenSSL. The user explicitly requests OCSP stapling enforcement,...
CVE-2026-32144
The CVE affects Erlang OTP’s public_key OCSP validation path (pubkey_ocsp module, pkix_ocsp_validate/5) where OCSP responder verification omits cryptographic signature validation of CA-designated responders. Instead, it only checks issuer name matching and OCSPSigning EKU, enabling a maliciously ...
CVE-2026-32144
Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in publickey:pkixocspvalidate/5 does not verify that a CA-designated responder certificate...
CVE-2026-32144: Improper Certificate Validation
Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in publickey:pkixocspvalidate/5 does not verify that a CA-designated responder certificate...
Siemens SIMATIC and SCALANCE Improper Certificate Validation (CVE-2024-8096)
When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error tha...
