CVE-2012-5533: Lighttpd

Medium severity, CVSS 5.0. EPSS: 12% chance of exploitation in the next 30 days.

The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.

Affected products

• Lighttpd Lighttpd: version 1.4.31 only; version 1.4.32 only

Published 2012-11-24. Last modified 2026-06-16.