{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41514", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-20T18:18:50.681Z", "datePublished": "2026-07-06T19:06:36.943Z", "dateUpdated": "2026-07-06T19:06:36.943Z"}, "containers": {"cna": {"title": "OP-TEE: RSA-OAEP padding oracle in Hisilicon HPRE driver enables plaintext recovery", "problemTypes": [{"descriptions": [{"cweId": "CWE-208", "lang": "en", "description": "CWE-208: Observable Timing Discrepancy", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 2.5, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/OP-TEE/optee_os/security/advisories/GHSA-qw4r-9wj9-q23r", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OP-TEE/optee_os/security/advisories/GHSA-qw4r-9wj9-q23r"}], "affected": [{"vendor": "OP-TEE", "product": "optee_os", "versions": [{"version": ">= 4.5.0, < 4.11.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-06T19:06:36.943Z"}, "descriptions": [{"lang": "en", "value": "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 4.5.0 and prior to version 4.11.0, the RSA-OAEP decryption implementation in the Hisilicon HPRE 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. Only affects plat-d06 with `CFG_HISILICON_ACC_V3=y`, which seems to be disabled by default. Version 4.11.0 contains a patch. As a workaround, disable Hisilicon HPRE RSA driver with `CFG_HISILICON_ACC_V3=n`."}], "source": {"advisory": "GHSA-qw4r-9wj9-q23r", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.5.0,4.11.0)"}}], "enrichment": {"confidence": 97.0, "confidence_source": "matching", "scores": [{"score": 97.0, "source": "matching"}]}, "original": {"product": "optee_os", "source": "cna", "vendor": "OP-TEE"}, "product": "op-tee_os", "vendor": "op-tee"}], "created": "2026-07-06T22:15:15.522477+00:00", "updated": "2026-07-06T22:15:15.522498+00:00", "vendors": ["op-tee", "op-tee$PRODUCT$op-tee_os"]}