Bug 2498138 (CVE-2026-42505) - CVE-2026-42505 crypto/tls: golang: Go crypto/tls: Information disclosure in Encrypted Client Hello
Summary: CVE-2026-42505 crypto/tls: golang: Go crypto/tls: Information disclosure in E...
Keywords:
Status: NEW
Alias: CVE-2026-42505
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 17:01 UTC by OSIDB Bzimport
Modified: 2026-08-31 10:42 UTC (History)
151 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-08 17:01:28 UTC 
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.
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