CVE-2017-3167: Apache HTTP Server

Critical severity, CVSS 9.8. EPSS: 20.2% chance of exploitation in the next 30 days.

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed.

Affected products

• Apache HTTP Server: from 2.2.0, before 2.2.33 (fixed in 2.2.33); from 2.4.0, before 2.4.26 (fixed in 2.4.26)
• Apple Mac OS X: before 10.13.1 (fixed in 10.13.1)
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Netapp Clustered Data Ontap: affected versions not specified
• Netapp Oncommand Unified Manager: affected versions not specified
• Netapp Storagegrid: affected versions not specified
• Oracle Secure Global Desktop: version 5.3 only
• Red Hat Enterprise Linux Desktop: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Eus: version 6.7 only; version 7.2 only; version 7.3 only; version 7.4 only; version 7.5 only; version 7.6 only; …
• Red Hat Enterprise Linux Server: version 6.0 only; version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.2 only; version 7.3 only; version 7.4 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Server Tus: version 7.2 only; version 7.3 only; version 7.4 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Workstation: version 6.0 only; version 7.0 only
• Red Hat JBoss Core Services: version 1.0 only

Published 2017-06-20. Last modified 2026-06-17.