CVE-2026-5479

HIGH EPSS 4.8%
Published Apr 10, 20262mo ago · Modified Jun 17, 20261w ago
7.6 CVSS 4.0
High
Find Similar
Published Apr 10, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
7.6
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
4.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-354

Affected Products 1

VendorProductVersionRange
wolfsslwolfssl* <5.9.1

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.