CVE-2022-29718 Open redirect in caddy
An open redirect in Caddy allows attackers to redirect users to malicious sites via crafted links, potentially facilitating phishing attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-29718?
CVE-2022-29718 is a medium-severity vulnerability in n/a, published on 2 Jun 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Caddy v2.4 was discovered to contain an open redirect vulnerability. A remote unauthenticated attacker may exploit this vulnerability to redirect users to arbitrary web URLs by tricking the victim users to click on crafted links.
Weakness: CWE-601
Which versions are affected by CVE-2022-29718?
4 open source packages ship an affected version, including github.com/caddyserver/caddy and github.com/caddyserver/caddy/v2. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/caddyserver/caddy Go | All versions | 2.5.0 |
github.com/caddyserver/caddy Go | All versions | 2.5.0 |
github.com/caddyserver/caddy/v2 Go | All versions | 2.5.0 |
github.com/caddyserver/caddy/v2 Go | All versions | 2.5.0 |
Linux distribution packages (3)
caddy SUSE:Package Hub 15 SP4 | All versions | 2.5.1-bp154.2.5.1 |
caddy openSUSE:Leap 15.4 | All versions | 2.5.1-bp154.2.5.1 |
caddy openSUSE:Tumbleweed | All versions | 2.5.1-2.1 |
Products include Caddyserver Caddy.
How do I fix CVE-2022-29718?
Upgrade github.com/caddyserver/caddy to 2.5.0 or later.
Is CVE-2022-29718 being exploited?
There is no known exploitation of CVE-2022-29718 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2018-21246 Caddy vulnerable to Authentication Bypass due to mishandling of TLS client authentication
- CVE-2026-27590 Caddy: Unicode case-folding length expansion causes incorrect split_path index in FastCGI transport
- CVE-2026-27586 Caddy's mTLS client authentication silently fails open when CA certificate file is missing or malformed
- CVE-2026-45135 Caddy: Unsafe Unicode Handling in FastCGI splitPos Allows Execution of Non-PHP Files
- CVE-2026-52845 Caddy: FastCGI header normalization bypass in `forward_auth copy_headers`
Sources
Also known as GHSA-2927-hv3p-f3vp, openSUSE-SU-2022:10007-1, openSUSE-SU-2024:12132-1.