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CVE-2026-80229 is a heap use-after-free in libcurl's handling of pooled TLS connections through the multi interface when built with OpenSSL 3 provider support. A pooled TLS connection can outlive the easy handle that originated it. libcurl associates an allocated OpenSSL library context with the easy-handle state and supplies it to OpenSSL without retaining an ownership reference. If the originating easy handle is destroyed while the connection remains active, the library context is freed although the active connection still references it. Subsequent connection I/O or post-handshake processing can dereference the dangling context.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Unknown; the content provides only a reference link and no vulnerability details.
A premature-free vulnerability that can result in a use-after-free condition in an OpenSSL provider, addressed by SUSE-SU-2026:4048-1 for affected curl/libcurl packages.
An OpenSSL provider use-after-free vulnerability caused by a premature free.
An OpenSSL provider use-after-free vulnerability addressed through the openSUSE curl/libcurl package update.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.