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)
Core 1
Core References
Scores
CVSS v3
4.0
EPSS
0.0017
EPSS Percentile
6.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-502
Status
published
Products (2)
wolfSSL/wolfSSL
< 5.9.0
wolfssl/wolfssl
< 5.9.0
Published
Apr 09, 2026
Tracked Since
Apr 10, 2026