CVE-2025-61730 (GCVE-0-2025-61730)

Vulnerability from cvelistv5 – Published: 2026-01-28 19:30 – Updated: 2026-02-02 17:28
VLAI?
Title
Handshake messages may be processed at the incorrect encryption level in crypto/tls
Summary
During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries (for instance the Client Hello and Encrypted Extensions messages), the subsequent messages may be processed before the encryption level changes. This can cause some minor information disclosure if a network-local attacker can inject messages during the handshake.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library crypto/tls Affected: 0 , < 1.24.12 (semver)
Affected: 1.25.0 , < 1.25.6 (semver)
Create a notification for this product.
Credits
Coia Prant (github.com/rbqvq)
Show details on NVD website
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              "name": "clientHandshakeStateTLS13.establishHandshakeKeys"
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              "name": "clientHandshakeStateTLS13.readServerFinished"
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              "name": "clientHandshakeStateTLS13.sendClientFinished"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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