CVE•Published 2026-07-28•Modified 2026-07-29•0 articles on news•4 live references•NVD data
CVE-2026-66754
Vulnerability data via NVD (ingested)
CVSS v3.1
5.9
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
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Weaknesses (CWE)
Description
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.
Timeline
Published 2026-07-28
Modified 2026-07-29
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-66754Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-66754Censys host search filtered to this CVE id.
grep.app
CVE-2026-66754Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-66754GitHub code search for direct mentions.
Google dork
"CVE-2026-66754" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-66754 on GitHub.
We haven't classified any articles referencing CVE-2026-66754 yet. The external references above still apply.