CVE-2026-108770: Appwrite Browser Screenshot Service Get.php PublicHostname server-side request forgery
A weakness has been identified in Appwrite up to 2.3.0. This vulnerability affects the function PublicHostname of the file src/Appwrite/Platform/Modules/Avatars/Http/Screenshots/Get.php of the component Browser Screenshot Service. This manipulation of the argument url causes server-side request forgery. The attack can be initiated remotely. Upgrading to version 2.4.0 is able to resolve this issue. Patch name: 393255e7302ae5503331d45802e2eee01c6a47fe. You should upgrade the affected component.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Appwriteto a version that resolves this vulnerability.Fixed in 2.4.0Patch 393255e7302ae5503331d45802e2eee01c6a47fe
Event History
Frequently Asked Questions
Which deployments are affected?
Appwrite versions up to and including 2.3.0 are affected in the Browser Screenshot Service, specifically its handling of the PublicHostname value in the screenshot endpoint.
Does exploitation require authentication or user interaction?
No. The provided severity vector indicates network-based exploitation with low attack complexity, no privileges required, and no user interaction.
What should be done to remediate this issue?
Upgrade Appwrite to version 2.4.0. The referenced patch is 393255e7302ae5503331d45802e2eee01c6a47fe.