ShinyHunters Exploits Oracle PeopleSoft Zero-Day (CVE-2026-35273)
The ShinyHunters threat group exploited a zero-day vulnerability (CVE-2026-35273) in Oracle PeopleSoft PeopleTools, a critical remote code execution flaw with a CVSS score of 9.8. The campaign, observed between May 27 and June 9, 2026, targeted over 100 global organizations, with a significant focus on the higher education sector. The vulnerability allowed unauthenticated remote code execution without user interaction. Stolen data from compromised organizations was subsequently published on ShinyHunters' data leak site, and some victims received extortion demands. Oracle released a security advisory on June 10, 2026, after the exploitation was already underway.
Signal context
First seen: May 27, 2026
Last updated: Jun 19, 2026
Status: Public signal
Key points
- ShinyHunters exploited CVE-2026-35273, a zero-day RCE vulnerability in Oracle PeopleSoft PeopleTools.
- Over 100 organizations, predominantly in higher education, were targeted between May 27 and June 9, 2026.
- The vulnerability has a CVSS score of 9.8 and allows unauthenticated remote code execution.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Educational Services
Likely country: Location not provided
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
- 1 signal in the same sector
- 22 signals with the same likely impact area
- 5 signals linked to this organization/domain
External sources
https://cloud.google.com/blog/topics/threat-intelligence/shinyhunters-targets-education-sector-oracle-peoplesoft-exploithttps://cloud.google.com/blog/topics/threat-intelligence/shinyhunters-targets-education-sector-oracle-peoplesoft-exploitPublic source from cloud.google.com.
https://thehackernews.com/2026/06/shinyhunters-exploits-oracle-peoplesoft.htmlhttps://thehackernews.com/2026/06/shinyhunters-exploits-oracle-peoplesoft.htmlPublic source from thehackernews.com.
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