Statamic up to 5.73.23/6.20.0 Image Proxy RemoteUrlValidator.php url dns rebinding

Summaryinfo

A vulnerability classified as problematic was found in Statamic up to 5.73.23/6.20.0. This impacts an unknown function of the file src/Imaging/RemoteUrlValidator.php of the component Image Proxy. Executing a manipulation of the argument url can lead to dns rebinding. This vulnerability is registered as CVE-2026-54242. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Statamic up to 5.73.23/6.20.0. It has been declared as problematic. This vulnerability affects an unknown function of the file src/Imaging/RemoteUrlValidator.php of the component Image Proxy. The manipulation of the argument url with an unknown input leads to a dns rebinding vulnerability. The CWE definition for the vulnerability is CWE-350. The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname. As an impact it is known to affect confidentiality. CVE summarizes:

Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.24 and 6.20.1, the Glide image proxy's URL validation in src/Imaging/RemoteUrlValidator.php and src/Imaging/GuzzleAdapter.php could be bypassed using DNS rebinding. The remote hostname was validated as publicly routable, but resolved again when the image was actually fetched, so an attacker controlling the hostname's DNS could rebind it to an internal address after validation and cause the server to make HTTP requests to internal addresses, including loopback, private network, and cloud metadata endpoints. This affects sites that pass user-supplied URLs to Glide. This issue is fixed in versions 5.73.24 and 6.20.1.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-54242 since 06/12/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1583.002.

By approaching the search of inurl:src/Imaging/RemoteUrlValidator.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.73.24 or 6.20.1 eliminates this vulnerability.

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Productinfo

Name

• Statamic

Version

• 5.73.0
• 5.73.1
• 5.73.2
• 5.73.3
• 5.73.4
• 5.73.5
• 5.73.6
• 5.73.7
• 5.73.8
• 5.73.9
• 5.73.10
• 5.73.11
• 5.73.12
• 5.73.13
• 5.73.14
• 5.73.15
• 5.73.16
• 5.73.17
• 5.73.18
• 5.73.19
• 5.73.20
• 5.73.21
• 5.73.22
• 5.73.23
• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8
• 6.9
• 6.10
• 6.11
• 6.12
• 6.13
• 6.14
• 6.15
• 6.16
• 6.17
• 6.18
• 6.19
• 6.20.0

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