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JLSEC-2026-733 Medium 4.1

When restoring a session from cache, a pointer from the serialized session data is used in a free...

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JLSEC Published
Modified
Severity
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Affected Packages
wolfSSL_jll < 5.9.2+0
Upstream
CVE-2026-5507 GHSA-f5fh-xmxq-55p9 EUVD-2026-21216

When restoring a session from cache, a pointer from the serialized session data is used in a free operation without validation. An attacker who can poison the session cache could trigger an arbitrary free. Exploitation requires the ability to inject a crafted session into the cache and for the application to call specific session restore APIs.

References