CVE•Published 2026-04-10•Modified 2026-04-29•1 article on news•5 live references•NVD data

CVE-2026-5479Wolfssl · Wolfssl

Vulnerability data via NVD (ingested)

CVSS v3.1

8.1

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 99% of all CVEs

Weaknesses (CWE)

CWE-354Improper Validation of Integrity Check Value

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.

Timeline

Published 2026-04-10

Modified 2026-04-29

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-5479

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Wolfssl Wolfssl"

All exposed Wolfssl Wolfssl instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Wolfssl"

HTTP body or banner mentions "Wolfssl" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-5479