CVE-2012-4023: Simon Brown Pebble

Medium severity, CVSS 4.3. EPSS: 1.2% chance of exploitation in the next 30 days.

CRLF injection vulnerability in Pebble before 2.6.4 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

Affected products

• Simon Brown Pebble: up to and including 2.6.3; version 1.0 only; version 1.1 only; version 1.2 only; version 1.3 only; version 1.4 only; …

Published 2012-11-08. Last modified 2026-06-16.