LogStash Flaws Expose Data and Enable Arbitrary Code Execution
German government CERT advisories disclosed two security flaws in LogStash, including one that can lead to information disclosure and another that allows arbitrary code execution in the context of the LogStash service. The code-execution issue is the more severe of the two, as successful exploitation could let an attacker run unauthorized commands with the privileges assigned to the service.
The paired advisories indicate that affected LogStash deployments face both confidentiality and system-compromise risks, making exposed or unpatched instances a priority for remediation. Organizations using LogStash should identify vulnerable installations, apply vendor fixes or mitigations, and review service permissions and monitoring data for signs of exploitation or abnormal access.

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How this story unfolded
2 events from the most recent confirmed update back to the earliest known activity.
dCERT publishes LogStash arbitrary code execution advisory 2026-1007
dCERT published advisory 2026-1007 for a LogStash vulnerability that allows execution of arbitrary code in the context of the service. The reference does not include further details on exploitation or remediation.
dCERT publishes LogStash information disclosure advisory 2026-0780
dCERT published advisory 2026-0780 for a LogStash vulnerability that allows information disclosure. No additional technical details are provided in the reference.
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