Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-p6gg-5hf4-4rgj

Graylog vulnerable to instantiation of arbitrary classes triggered by API request

CVSS 8.8 HighCriticalEPSS 0.35 · 98th percentile

Critical, because:

  • CVSS score 8.8 (7.0 or more) and EPSS 0.35 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the GitHub Advisory Database at 7 Feb 2024, 18:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.graylog2:graylog2-serverMaven>=2.0.0, <5.1.11 || >=5.2.0-alpha.1, <5.2.45.1.11, 5.2.4
Identifiers
GHSA-p6gg-5hf4-4rgj · CVE-2024-24824
Weakness (CWE)
CWE-284 · CWE-863
Tags
Published
7 Feb 2024
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Graylog (org.graylog2:graylog2-server) versions from 2.0.0 before 5.1.11, and 5.2.0-alpha.1 before 5.2.4, are affected. An attacker with an account holding the clusterconfigentry:create and clusterconfigentry:edit permissions, which are usually granted only to Admin users, can send a crafted HTTP PUT request to the cluster config API to load and instantiate arbitrary classes, potentially running code or exposing file contents. Upgrade to version 5.1.11 or 5.2.4.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.35, the 98th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.