CVE-2003-0843: Dag Apt Repository Mod Gzip

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

Format string vulnerability in mod_gzip_printf for mod_gzip 1.3.26.1a and earlier, and possibly later official versions, when running in debug mode and using the Apache log, allows remote attackers to execute arbitrary code via format string characters in an HTTP GET request with an "Accept-Encoding: gzip" header.

Affected products

• Dag Apt Repository Mod Gzip: up to and including 1.3.26.1a

Published 2003-11-17. Last modified 2026-06-16.