CVE•Published 2026-06-23•Modified 2026-06-26•0 articles on news•4 live references•NVD data

CVE-2026-45692Caddyserver · Caddy

Vulnerability data via NVD (ingested)

CVSS v3.1

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-187Partial String Comparison CWE-863Incorrect Authorization

Description

Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv.Atoi(). This vulnerability is fixed in 2.11.3.

Timeline

Published 2026-06-23

Modified 2026-06-26

External references

NVD MITRE Exploit-DB VulnCheck

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).

Shodan · vuln tag0 hosts

vuln:CVE-2026-45692

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Caddyserver Caddy"

All exposed Caddyserver Caddy instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Caddy"

HTTP body or banner mentions "Caddy" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-45692