CVE-2026-5504 - PKCS7 CBC Padding Oracle — Plaintext Recovery

CVE-2026-5504 - PKCS7 CBC Padding Oracle — Plaintext Recovery

https://cvefeed.io/rssfeed/latest.atom / Fri, 04/10/2026 - 03:42
CVE ID :CVE-2026-5504
Published : April 9, 2026, 11:17 p.m. | 1 hour, 52 minutes ago
Description :A padding oracle exists in wolfSSL's PKCS7 CBC decryption that could allow an attacker to recover plaintext through repeated decryption queries with modified ciphertext. In previous versions of wolfSSL the interior padding bytes are not validated.
Severity: 6.3 | MEDIUM
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