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Each node maintains an in-memory cache of user sessions.

In a multi-node Graylog cluster, after a user has explicitly logged out, a user session may still be used for API requests until it has reached its original expiry time. `GET /api/system/debug/support/bundle/download/`.ĬVE-2023-41041 Graylog is a free and open log management platform. Users unable to upgrade should block all HTTP requests to the following HTTP API endpoints by using a reverse proxy server in front of Graylog. This vulnerability is fixed in Graylog version 5.1.3 and later. For the Graylog Docker images, the `data_dir` is set to `/usr/share/graylog/data` by default. The vulnerability would allow the download or deletion of files in the following example directories: `/var/lib/graylog-server/support-bundle-test` and `/var/lib/graylog-server/support-bundlesdirectory`. Due to the partial path traversal vulnerability, an attacker with valid Admin role credentials can read or delete files in directories that start with a `/var/lib/graylog-server/support-bundle` directory name. The data directory for the Support Bundle feature is always `/support-bundle`. The default `data_dir` in operating system packages (DEB, RPM) is set to `/var/lib/graylog-server`. Graylog's Support Bundle feature allows an attacker with valid Admin role credentials to download or delete files in sibling directories of the support bundle directory.

The vulnerability is caused by incorrect user input validation in an HTTP API resource. A partial path traversal vulnerability exists in Graylog's `Support Bundle` feature. CVE-2023-41044 Graylog is a free and open log management platform.