CVE-2026-28807 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')…
🚨 CVE-2026-28807 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in gleam-wisp wisp allows arbitrary file read via percent-encoded path traversal. The wisp.servestatic function is vulnerable to path traversal because sanitization runs before percent-deco
What This Means For You
- New vulnerability disclosed — verify if your stack is exposed.
Related ATT&CK Techniques
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-28807 | Path Traversal | Software: gleam-wisp wisp, Versions: >= 2.1.1, < 2.2.1, Vulnerable Component: wisp.serve_static, Description: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability allowing arbitrary file read via percent-encoded path traversal due to sanitization running before percent-decoding. |
| CVE-2026-28807 | Information Disclosure | Software: gleam-wisp wisp, Versions: >= 2.1.1, < 2.2.1, Impact: Unauthenticated attacker can read any file readable by the application process (source code, configuration files, secrets, system files) via a single HTTP request exploiting a path traversal vulnerability in wisp.serve_static. |
Source & Attribution
| Source Platform | Telegram |
| Channel | CVE Notify |
| Published | April 06, 2026 at 20:27 UTC |
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