CVE-2026-41434

OP-TEE has unbounded recursion in sanitize_client_object()

LOW
3.3
CVSS Score
Published: July 6, 2026 at 05:24 PM UTC
Updated: October 25, 2026 at 08:10 PM UTC
2 products affected across 2 vendorsOp TeeOP-TEE

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Severity
LOW3.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.10.0 ≤ v ≤ 4.10.0
Affected range stops below 4.11.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121

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