CVE-2026-5507

medium

Description

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

https://github.com/wolfSSL/wolfssl/pull/10088

Details

Source: Mitre, NVD

Published: 2026-04-09

Updated: 2026-04-29

Risk Information

CVSS v2

Base Score: 3.7

Vector: CVSS2#AV:L/AC:H/Au:M/C:N/I:N/A:C

Severity: Low

CVSS v3

Base Score: 4

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

CVSS v4

Base Score: 4.1

Vector: 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