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CVE-2026-41515

LOW
2.5
CVSS 3.1
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 3.9.0 and prior to version 4.11.0, the RSA-OAEP decryption implementation in the NXP CAAM crypto driver uses non-constant-time `memcmp()` for label hash verification and has multiple distinguishable error paths. This creates a Manger-style padding oracle that allows an attacker to recover RSA-OAEP plaintext with approximately 1000-2000 adaptive chosen ciphertext queries. Version 4.11.0 contains a patch. As a workaround, disable the NXP CAAM RSA driver with `CFG_CRYPTO_DRV_RSA=n`.

Metadata

CVE ID
CVE-2026-41515
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-04-20 18:18 UTC
Published
2026-07-06 19:25 UTC
Last updated
2026-07-06 19:25 UTC
Primary CWE
CWE-208
CWE-208: Observable Timing Discrepancy
Vendor / Product
OP-TEE / optee_os
Sources
cve.org  ·  NVD

Severity & Metrics

2.5 LOW CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products (1)
VendorProductPlatformVersions
OP-TEE optee_os — >= 3.9.0, < 4.11.0
Weakness (CWE)
CWESourceDescription
CWE-208 cna CWE-208: Observable Timing Discrepancy
CVSS scores (1)
ScoreSeverityVersionSourceVector
2.5 LOW 3.1 cna CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
References (1)
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