DEBIAN-CVE-2026-42505

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-42505
Published: 08 Jul 2026, 17:17
Last modified:12 Jul 2026, 04:00

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Jul 2026, 17:17
Published
Vulnerability first disclosed
12 Jul 2026, 04:00
Last Modified
Vulnerability information updated

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.

CVSS Metrics

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

Affected Systems

  • debian•golang-1.15

    all

  • debian•golang-1.19

    all

  • debian•golang-1.24

    all

  • debian•golang-1.25

    < 1.25.12-1

  • debian•golang-1.26

    < 1.26.5-1

  • debian•golang-1.27

    < 1.27~rc2-1

References (1)