Severity: low Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68 Description: A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails. Users are recommended to upgrade to version 2.4.69, which fixes this issue. Credit: Lucian Nitescu (finder) Zhen Kong (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-63686 Timeline: 2026-06-14: Report received 2026-10-01: fixed in 2.4.x by r1938678 2026-10-01: 2.4.69 released
