GHSA-mqh4-2mm8-g7w9
Adminer PHP Object Injection issue leads to Denial of Service
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | vrana/adminer | <= 4.8.1 | no fix listed |
Details
As written in the advisory (Markdown source, shown as plain text).
Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer’s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.
References
External links from the advisory. They lead to third-party sites.