CVE-2025-23048

Apache HTTP Server: mod_ssl access control bypass with session resumption

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

Apache Software Foundation · Apache HTTP Server

CVSS v3.1 CNA

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

EPSS

1.04% chance of exploitation in the next 30 days, 63rd percentile

Published

2025-07-10

Updated

2026-02-26

Proof-of-concept exploits (1)

• absholi7ly/CVE-2025-23048-POC4★ · 2025-10-22

Security advisories

• https://httpd.apache.org/security/vulnerabilities_24.html

References

• CVE Record
• NVD entry

Related

• CVE-2023-20048
• CVE-2023-50029
• CVE-2024-21683
• CVE-2024-30056
• CVE-2024-32113
• CVE-2024-32459