CVE-2026-5507
MEDIUMSession Cache Restore — Arbitrary Free via Deserialized Pointer
Title source: cnaDescription
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 (1)
Scores
CVSS v4
4.1
EPSS
0.0002
EPSS Percentile
3.7%
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
Details
CWE
CWE-502
Status
published
Products (1)
wolfSSL/wolfSSL
< 5.9.0
Published
Apr 09, 2026
Tracked Since
Apr 10, 2026