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Vulnerability record · CVE-2024-24824 · published 7 February 2024

CVE-2024-24824: Graylog improper access control vulnerability

Graylog · Graylog

Graylog is a free and open log management platform. Starting in version 2.0.0 and prior to versions 5.1.11 and 5.2.4, arbitrary classes can be loaded and instantiated using a HTTP PUT request to the `/api/system/cluster_config/` endpoint. Graylog's cluster config system uses fully qualified class names as config keys. To validate the existence of the requested class before using them, Graylog loads the class using the class loader. If a user with the appropriate permissions performs the request, arbitrary classes with 1-arg String constructors can be instantiated. This will execute arbitrary code that is run during class instantiation. In the specific use case of `java.io.File`, the behavior of the internal web-server stack will lead to information exposure by including the entire file content in the response to the REST request. Versions 5.1.11 and 5.2.4 contain a fix for this issue.

8.8 CVSS 3.1 High EPSS 35% · top 1.6% CWE-284 · Improper access controlCWE-863 · Incorrect authorization
8.8CVSS 3.1 base score
35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Graylog is a free and open log management platform. Starting in version 2.0.0 and prior to versions 5.1.11 and 5.2.4, arbitrary classes can be loaded and instantiated using a HTTP PUT request to the `/api/system/cluster_config/` endpoint. Graylog's cluster config system uses fully qualified class names as config keys. To validate the existence of the requested class before using them, Graylog loads the class using the class loader. If a user with the appropriate permissions performs the request, arbitrary classes with 1-arg String constructors can be instantiated. This will execute arbitrary code that is run during class instantiation. In the specific use case of `java.io.File`, the behavior of the internal web-server stack will lead to information exposure by including the entire file content in the response to the REST request. Versions 5.1.11 and 5.2.4 contain a fix for this issue.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Graylog2/graylog2-server/blob/e458db8bf4f789d4d19f1b37f0263f910c8d036c/graylog2-server/src/main/java/ Product
https://github.com/Graylog2/graylog2-server/commit/75ef2b8d60e7d67f859b79fe712c8ae7b2e861d8 Patch
https://github.com/Graylog2/graylog2-server/commit/7f8ef7fa8edf493106d5ef6f777d4da02c5194d9 Patch
https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-p6gg-5hf4-4rgj ExploitVendor Advisory
https://github.com/Graylog2/graylog2-server/blob/e458db8bf4f789d4d19f1b37f0263f910c8d036c/graylog2-server/src/main/java/ Product
https://github.com/Graylog2/graylog2-server/commit/75ef2b8d60e7d67f859b79fe712c8ae7b2e861d8 Patch
https://github.com/Graylog2/graylog2-server/commit/7f8ef7fa8edf493106d5ef6f777d4da02c5194d9 Patch
https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-p6gg-5hf4-4rgj ExploitVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-24824), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.