CVE-2008-3443: The regular expression engine (regex.c) in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through...

Security readout for executives and security teams

This is a denial-of-service flaw in older Ruby regular expression handling. A remote attacker could make a Ruby socket service, demonstrated with WEBrick, hang or crash by sending repeated long requests. The main business risk is service outage on legacy Ruby systems, not data theft or code execution based on the provided sources. Exposure is most likely in legacy Ruby applications, embedded systems, or vendor-distributed packages still running the affected Ruby versions and accepting untrusted network requests. Internet-facing WEBrick or Ruby socket services are the clearest concern. Modern Ruby deployments are unlikely to be affected unless old runtimes remain in production. Handle during legacy-risk cleanup unless an affected Ruby service is internet-facing or business-critical. If exposed, prioritize patching or isolation because a remote outage could be forced without authentication according to the CVE description. Mitigation focus: Upgrade affected Ruby runtimes using the relevant vendor advisory packages.; Prioritize exposed WEBrick or Ruby socket services before internal-only services.; Reduce untrusted network access to vulnerable Ruby services until patched..

Prepared

Jun 28, 2026, 18:33 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.