Description
When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.
References (5)
Scores
CVSS v3
5.3
EPSS
0.0002
EPSS Percentile
3.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-532
Status
published
Products (1)
golang/go
< 1.24.8
Published
Oct 29, 2025
Tracked Since
Feb 18, 2026