CVE-2025-23048 (GCVE-0-2025-23048)

Vulnerability from cvelistv5 – Published: 2025-07-10 16:56 – Updated: 2026-02-26 17:50
VLAI
Title
Apache HTTP Server: mod_ssl access control bypass with session resumption
Summary
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-22 04:55 UTC
CWE
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache HTTP Server Affected: 2.4.35 , ≤ 2.4.63 (semver)
guessed Create a notification for this product.
Credits
Sven Hebrok, Felix Cramer, Tim Storm, Maximilian Radoy, and Juraj Somorovsky at Paderborn University
Show details on NVD website
To clipboard 

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