CVE-2026-6727

The record

A timing side-channel vulnerability exists in the RSA OAEP decryption implementation. A privileged local attacker with access to the TPM command interface may be able to exploit timing differences to recover information that could allow decryption of ciphertexts encrypted to TPM-managed RSA keys, including the RSA Endorsement Key (EK), including import blobs, credential blobs, and session salts. Under certain conditions, this may also enable the forgery of TPM 2.0 attestations. Refer to TCGVRT0011.

Affected packages

Related vulnerabilities

• CVE-2026-87946 Observable Timing Discrepancy vulnerability in Drupal SAML SSO - Service Provider allows… CWE-208
• CVE-2026-49265 OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. CWE-208
• CVE-2026-77696 Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret… CWE-208
• CVE-2026-54875 Issue summary: A non-constant-time optimized implementation of scalar point… CWE-208
• CVE-2026-54872 Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2… CWE-208
• CVE-2026-87737 An issue was discovered in the mirage-crypto-ec package before 2.4.0 for OCaml. CWE-208
• CVE-2026-84308 phpseclib is a PHP secure communications library. CWE-208
• CVE-2026-82449 Cockpit CMS before 2.14.1 contains an account enumeration vulnerability in the auth check… CWE-208