CVEvulnerability
CVE-2025-23048
9.1 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2025-07-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-284
Description
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.
Affected configurations
• apache http server (>= 2.4.35 < 2.4.64)
Related
Weakness · CWE (1)
- CWE-284 Improper Access Control weakness
References
- https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/07/10/2 www.openwall.com
- http://www.openwall.com/lists/oss-security/2025/07/10/8 www.openwall.com
- https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html lists.debian.org