CVE-2026-66754 (GCVE-0-2026-66754)
Vulnerability from cvelistv5 – Published: 2026-07-28 16:04 – Updated: 2026-07-29 13:49 X_Open Source
VLAI
EPSS
VEX
Title
Rouille 0.1.6 - 3.6.2 Reachable Assertion DoS via remove_prefix percent-encoding
Summary
Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::remove_prefix function that allows remote unauthenticated attackers to crash the server by sending a crafted percent-encoded URL. Attackers can send a request whose decoded path matches a configured prefix while the raw percent-encoded path does not, causing the assert! to fail and triggering either a 500 error or full process termination depending on the panic configuration.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 13:48 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/Remote-Denial-of-Serv… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/rouille-reac… | third-party-advisory |
Impacted products
Date Public
2026-07-26 00:00
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