CVE-2026-5479— wolfSSL EVP ChaCha20-Poly1305 AEAD authentication tag
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-5479
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
wolfSSL EVP ChaCha20-Poly1305 AEAD authentication tag
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
完整性检查值验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
wolfSSL（CyaSSL） 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wolfSSL（CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL（CyaSSL）存在安全漏洞，该漏洞源于wolfSSL_EVP_CipherFinal及相关EVP密码最终化函数中的ChaCha20-Poly1305 AEAD解密路径在向调用者返回明文前未验证身份验证标签，可能导致身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-5479
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-5479
请登录查看更多情报信息。
Same Patch Batch · wolfSSL · 2026-04-10 · 6 CVEs total
| CVE-2026-5188 | Integer underflow in X.509 SAN parsing in wolfSSL | |
| CVE-2026-5466 | wc_VerifyEccsiHash missing sanity check | |
| CVE-2026-5501 | Improper Certificate Signature Verification in X.509 Chain Validation Allows Forged Leaf C | |
| CVE-2026-5477 | Prefix-substitution forgery via integer overflow in wolfCrypt CMAC | |
| CVE-2026-5500 | Improper Validation of AES-GCM Authentication Tag Length in PKCS#7 Envelope Allows Authent |
IV. Related Vulnerabilities
Same product: wolfSSL
- CVE-2026-5477
Prefix-substitution forgery via integer overflow in wolfCryp - CVE-2026-5188
Integer underflow in X.509 SAN parsing in wolfSSL - CVE-2026-5500
Improper Validation of AES-GCM Authentication Tag Length in - CVE-2026-5501
Improper Certificate Signature Verification in X.509 Chain V - CVE-2026-5466
wc_VerifyEccsiHash missing sanity check
Same vendor: wolfSSL
- CVE-2026-0930
Potential wolfSSHd Buffer out-of-bounds Read on Windows Hand - CVE-2026-5477
Prefix-substitution forgery via integer overflow in wolfCryp - CVE-2026-5188
Integer underflow in X.509 SAN parsing in wolfSSL - CVE-2026-5500
Improper Validation of AES-GCM Authentication Tag Length in - CVE-2026-5501
Improper Certificate Signature Verification in X.509 Chain V
Same weakness: CWE-354
- CVE-2026-32148
Lockfile checksums not verified in Hex allows dependency int - CVE-2026-32105
xrdp: RDP MAC signature (dataSignature) never verified on re - CVE-2026-5504
PKCS7 CBC Padding Oracle — Plaintext Recovery - CVE-2026-26928
Lack of Dynamic Library Validation in SzafirHost - CVE-2026-28498
Authlib: Fail-Open Cryptographic Verification in OIDC Hash B
V. Comments for CVE-2026-5479
No comments yet