Improper Input Validation Affecting caddy package, versions <2.11.0-r0
Threat Intelligence
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The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-CADDY-16761740
- published20 May 2026
- disclosed23 Jun 2026
Introduced: 20 May 2026
CVE-2026-45135 (opens in a new tab)How to fix?
Upgrade Minimos:latest caddy to version 2.11.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream caddy package and not the caddy package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Caddy is an extensible server platform that uses TLS by default. From 2.7.0 until 2.11.3, the FastCGI transport's splitPos() in modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead Caddy's FastCGI splitting into treating a non-.php (or other configured split_path extension) file as a script. In any deployment where the attacker can place content into a file served via FastCGI (uploads, file storage, etc.), this can be escalated to remote code execution by crafting a URL whose path triggers either flaw. This vulnerability is fixed in 2.11.3.