Dashboard / CVE-2026-42505

CVE-2026-42505

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 71/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: None
A: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
golang go 1.23.0 – 1.25.12
golang go 1.27

References & Advisories (4)

https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc
Mailing List Release Notes Vendor Advisory
https://go.dev/issue/79282
Issue Tracking Patch

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploitation Probability

0.38%
Raw Score 0.003820
Percentile 32.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00382
2026-10-28
0.00382

Intelligence Sources

nvd ref →

External Links