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Oracle PeopleSoft servers under attack, Oracle pushes out-of

Feeds2.Feedburner •Zeljka Zorz • June 11, 2026

A zero-day vulnerability (CVE-2026-35273) in Oracle PeopleSoft PeopleTools is being exploited in the wild, Charles Carmakal, CTO at cybersecurity firm Mandiant, part of Google Cloud, warned today. The warning comes a day after Oracle published an out-of-band security alert the flaw, which is remotely exploitable without authentication, may result in remote code execution, and affects PeopleSoft PeopleTools versions 8.61 and 8.62 (and possibly earlier, unsupported ones as well). Oracle credited researchers with TrendAI Zero … More →

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

ShinyHunters Exploits Oracle PeopleSoft Zero-Day Vulnerability A critical zero-day vulnerability (CVE-2026-35273) in Oracle PeopleSoft has been exploited by the ShinyHunters group, leading to breaches of over 100 organizations, primarily in the education sector. The vulnerability allows unauthenticated remote code execution, enabling attackers to compromise systems without prior authentication. The exploitation occurred between May 27 and June 9, 2026, before Oracle's advisory was published on June 10, 2026. Mandiant confirmed that approximately 500,000 student records from the University of Nottingham were among the stolen data. Attackers utilized a 'gadget chain' of vulnerabilities to facilitate the breaches, and the stolen data has been published on the ShinyHunters Data Leak Site. Oracle has issued an urgent advisory recommending immediate patching and mitigation measures, but as of now, no official patch is available. Organizations are advised to restrict internet-facing access to vulnerable systems. 65 sources 77

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Oracle PeopleSoft servers under attack, Oracle pushes out-of

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