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CVE-2026-8932 is a security-feature bypass in libcurl connection-pool matching for mutual TLS (mTLS). libcurl can reuse an existing connection after client-certificate-related configuration changes that should prohibit reuse because relevant client-certificate and private-key options are omitted from connection configuration matching. A subsequent transfer can therefore inherit an incorrect mTLS client-authentication context.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This nine-file repository is a local proof of concept for CVE-2026-8932, an incomplete libcurl mTLS configuration comparison during connection reuse. Its primary executable, poc/poc.c, is a C/libcurl client that creates two easy handles and shares only the connection cache (CURL_LOCK_DATA_CONNECT). It pins server.test:8443 to 127.0.0.1, enforces certificate verification and HTTP/1.1, and performs GET /A with a valid encrypted-client-key password followed by GET /B with WRONG-PASSWORD. A vulnerable libcurl implementation may reuse the first persistent HTTPS connection instead of opening a new connection, allowing /B to succeed without attempting to decrypt the key using the invalid password. server/server.py is a threaded Python TLS 1.2+ mTLS test server that requires a client certificate, maintains HTTP keep-alive, and logs TLS connection IDs and HTTP requests to confirm both paths used one connection. README files provide English and Persian setup/background material; docs/poc-output.txt records a successful reproduction; certs/.gitkeep reserves the directory while .gitignore excludes generated keys and certificates. The repository contains no offensive command-execution payload and is designed for an authorized local test environment.
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47 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability referenced by the TuxCare CentOS 7 security advisory. The content provides no technical description or CVSS details specific to this CVE.
A vulnerability referenced in an Oracle Linux security update affecting curl/libcurl packages on Oracle Linux 10.
A specific vulnerability addressed by AlmaLinux advisory RHSA-2026:69125 for curl/libcurl packages. The content does not describe the flaw type.
A libcurl security-feature-bypass vulnerability caused by improper reuse of mutual-TLS (mTLS) connections.
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Cross-references every affected SKU, including bundled OEM variants.
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