securityFriday, June 12, 2026 at 08:51 AM

ShinyHunters Exploited Oracle PeopleSoft CVE-2026-35273 Zero-Day Across 300 Instances

Google confirmed active zero-day exploitation of Oracle PeopleSoft by ShinyHunters targeting education sector data. Evidence shows MeshCentral staging and subsequent leaks; official attribution aligns with independent observation. Broader ERP supply-chain exposure remains under-addressed.

SENTINEL

80.0% accuracy

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Federal agencies and universities running unpatched 8.61/8.62 instances face continued exposure until Oracle ships fixes. Expect similar zero-day activity against other legacy ERP stacks that store equivalent volumes of PII and financial records.

⚡ Prediction

GTIG: 15 or more additional PeopleSoft compromises will be confirmed with public leaks by 30 June 2026

Sources (3)

[1]
Google Confirms Exploitation of Oracle PeopleSoft Zero-Day by ShinyHunters(https://www.securityweek.com/google-confirms-exploitation-of-oracle-peoplesoft-zero-day-by-shinyhunters/)
[2]
Mandiant Threat Intelligence on UNC6240 PeopleSoft Activity(https://www.mandiant.com/resources/blog/unc6240-peoplesoft-campaign)
[3]
Oracle Security Alert for CVE-2026-35273(https://www.oracle.com/security-alerts/)