ELA-1752-1 apache2 security update

denial of service

2026-06-07
Packageapache2
Version2.4.25-3+deb9u24 (stretch), 2.4.59-1~deb10u8 (buster)
Related CVEs CVE-2026-49975


It was discovered that incorrect cookie header accounting in the HTTP/2 implementation of the Apache HTTP server may result in denial of service (excessive resources consumption).



For Debian 10 buster, these problems have been fixed in version 2.4.59-1~deb10u8.

For Debian 9 stretch, these problems have been fixed in version 2.4.25-3+deb9u24.

We recommend that you upgrade your apache2 packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.