CVE-2025-23048

Apache HTTP Server: mod_ssl access control bypass with session resumption

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.

Category

N/A
CVSS
Severity:
EPSS 0.01%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache HTTP Server
Published at:
Updated at:

References

Link Tags
https://httpd.apache.org/security/vulnerabilities_24.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-23048?
CVE-2025-23048 has not yet been assigned a CVSS score.
How to fix CVE-2025-23048?
To fix CVE-2025-23048, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-23048 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-23048 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-23048?
CVE-2025-23048 affects Apache Software Foundation Apache HTTP Server.
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