CVEvulnerability

CVE-2026-77281

6.5 MEDIUM Published 2026-09-17 Modified 2026-09-24 Official page ↗
Status
Awaiting Analysis
Published
2026-09-17
Last modified
2026-09-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weaknesses
CWE-178, CWE-770, CWE-94

Description

Caddy is an extensible server platform that uses TLS by default. In version 2.11.3 and earlier, three configuration-dependent weaknesses affect the handler and placeholder layer. In modules/caddyhttp/rewrite/rewrite.go, Rewrite.Rewrite() can pass attacker-controlled replacement bytes through buildQueryString for a second placeholder expansion when a rewrite URI ends with a literal question mark, allowing injected environment or request-variable placeholders to disclose data and, when the file provider is registered, allowing injected file placeholders to disclose readable files. The issue is fixed in version 2.11.4.

Related

Weakness · CWE (3)

  • CWE-178 Improper Handling of Case Sensitivity weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling weakness
  • CWE-94 Improper Control of Generation of Code weakness

References