Apache HTTP Server versions 2.4.20 to 2.4.43.

Summary

Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.

Timeline

1. Aug 7, 2020, 3:24 PM UTCCVE published
2. Aug 4, 2024, 10:26 AM UTCRecord last updated
3. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• n/a Apache HTTP Server

  2.4.20 to 2.4.43

References 25