CVE-2026-123611

3.7 LOWpublic exploit available

Published 2026-11-08 · Updated 2026-11-08

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

rustls before 0.23.46 contains a key exchange downgrade vulnerability that allows network attackers to poison the per-server-name key-exchange group record via an unauthenticated ServerHello. Attackers can answer one connection with a ServerHello selecting X25519, causing later ClientHellos to send only classical shares and lose post-quantum confidentiality.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Weaknesses

CWE-757

Public exploit & PoC references

https://github.com/rustls/rustls/security/advisories/GHSA-w44r-93j7-qv28

All references

https://github.com/rustls/rustls/security/advisories/GHSA-w44r-93j7-qv28
https://www.vulncheck.com/advisories/rustls-before-0.23.46-key-exchange-downgrade-via-unauthenticated-serverhello

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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