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["https://www.cve.org/CVERecord?id=CVE-2026-28490\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-28490\nhttps://github.com/authlib/authlib/commit/48b345f29f6c459f11c6a40162b6c0b742ef2e22\nhttps://github.com/authlib/authlib/releases/tag/v1.6.9\nhttps://github.com/authlib/authlib/security/advisories/GHSA-7432-952r-cw78"], "statement": "This MODERATE vulnerability in Authlib exposes a Bleichenbacher padding oracle in the JWE RSA1_5 implementation. Authlib enables RSA1_5 by default and breaks constant-time protections from the cryptography library. Remote attackers can exploit timing side-channels to decrypt encrypted tokens. Exploitation requires high complexity but no authentication. Impact is high confidentiality loss. Affects versions prior to 1.6.9.", "threat_severity": "Moderate"}

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