CVE-2026-5479

In wolfSSL's EVP layer, the ChaCha20-Poly1305 AEAD decryption path in wolfSSL_EVP_CipherFinal (and related EVP cipher finalization functions) fails to verify the authentication tag before returning plaintext to the caller. When an application uses the EVP API to perform ChaCha20-Poly1305 decryption, the implementation computes or accepts the tag but does not compare it against the expected value.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/wolfSSL/wolfssl/pull/10102	Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

History

29 Apr 2026, 13:45

Type	Values Removed	Values Added
CPE		cpe:2.3:a:wolfssl:wolfssl::::::::
First Time		Wolfssl Wolfssl wolfssl
References	~~() https://github.com/wolfSSL/wolfssl/pull/10102 -~~	() https://github.com/wolfSSL/wolfssl/pull/10102 - Issue Tracking
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1

10 Apr 2026, 04:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-10 04:17

Updated : 2026-04-29 13:45

NVD link : CVE-2026-5479

Mitre link : CVE-2026-5479

CVE.ORG link : CVE-2026-5479

JSON object : View

Products Affected

wolfssl

wolfssl

CWE

CWE-354

Improper Validation of Integrity Check Value

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