n/a vulnerability

Allaire JRun 3.0 http servlet server allows remote attackers to directly access the WEB-INF directory via a URL request that contains an extra "/" in the beginning of the request (aka the "extra leading slash").

Published 11 Dec 2000Updated 23 Sep 2026195 sources
CVSS 5.0 ✓ VERIFIED REFERENCE

What happened

Allaire JRun 3.0 http servlet server allows remote attackers to directly access the WEB-INF directory via a URL request that contains an extra "/" in the beginning of the request (aka the "extra leading slash").

Affected versions

n/a: n/a Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references