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CVE-2026-5504
Published: Apr 9, 2026
Modified: Apr 14, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
wolfSSL | wolfSSL | affected 0 - <= 5.9.0 |
Weaknesses (CWE)
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