CVE-2026-41434

OP-TEE has unbounded recursion in sanitize_client_object()

State: Published
Severity: 3.3 Low
Published: Jul 6, 2026
Updated: Jul 7, 2026
Reserved: Apr 20, 2026

Description

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.10.0 and prior to version 4.11.0, an unbounded recursion can crash the PKCS#11 TA. Version 4.11.0 contains a patch. No known workarounds are available.

Scores

CVSS	Score	Vector	Source
3.1	3.3 Low	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	GitHub_M

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
optee_osOP-TEE	>= 3.10.0, < 4.11.0Affected

References

https://github.com/OP-TEE/optee_os/security/advisories/GHSA-wh38-23ff-grff

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