CVE•Published 2026-07-08•Modified 2026-07-13•0 articles on news•4 live references•NVD data

CVE-2026-42505Golang · Go

Vulnerability data via NVD (ingested)

CVSS v3.1

5.3

MEDIUM

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

EPSS percentile

Exploit Prediction Scoring System · top 66% of all CVEs

Weaknesses (CWE)

CWE-201Insertion of Sensitive Information Into Sent Data

Description

Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.

Timeline

Published 2026-07-08

Modified 2026-07-13

External references

NVD MITRE Exploit-DB 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-2026-42505

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Golang Go"

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

Shodan · banner/body mention

http.html:"Go"

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

More intel sources (5)

Shodan report

vuln:CVE-2026-42505