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CVE-2025-68121 is an incorrect certificate-validation vulnerability in Go's crypto/tls session-resumption handling. If the ClientCAs or RootCAs fields of the underlying Config change between the initial and resumed handshakes, a resumed handshake may succeed when it should be rejected. The condition can arise when an application modifies a configuration returned by Config.Clone or uses Config.GetConfigForClient. Both client-side server authentication and server-side client authentication can be affected, allowing sessions to resume despite incompatible certificate trust policies.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
225 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Go crypto/tls vulnerability involving unexpected TLS session resumption.
A Go crypto/tls vulnerability involving unexpected TLS session resumption. The notice assigns this CVE a critical CVSS v3 vector and states exploits are available.
A vulnerability involving unexpected TLS session resumption in Go's crypto/tls package, affecting packages installed on a Rocky Linux 8 host.
A Go crypto/tls vulnerability involving unexpected TLS session resumption behavior.
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.