
Oracle PeopleSoft Zero-Day Exploited by ShinyHunters in Widespread Data Theft Campaign
Oracle published a security advisory on June 10, 2026, for CVE-2026-35273, a critical unauthenticated remote code execution vulnerability in PeopleSoft Enterprise PeopleTools versions 8.61 and 8.62. This advisory was released as the ShinyHunters cybercrime group was actively exploiting the flaw in a widespread data theft campaign. The campaign, which ran between May 27 and June 9, 2026, targeted over 100 organizations, primarily in the higher education sector, with stolen data including student records being published on ShinyHunters' data leak site.
Signal context
First seen: Jun 10, 2026
Last updated: Jun 29, 2026
Status: Public signal
Key points
- Oracle published a security advisory (CVE-2026-35273) on June 10, 2026.
- ShinyHunters group actively exploited a zero-day vulnerability in Oracle PeopleSoft.
- Attack campaign occurred between May 27 and June 9, 2026.
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: 🇨🇦 Canada
inferred from source domains
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
- 3 signals in the same sector
- 97 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Massive Breach Exposes 74000 Networks, From Oracle and Samsung to a NATO Contractor - SOFX Reporthttps://www.sofx.com/massive-breach-exposes-74000-networks-from-oracle-and-samsung-to-a-nato-contractor/Public source from sofx.com.
Oracle PeopleSoft Zero-Day Vulnerability (CVE-2026-35273) Exploited by ShinyHunters - eSentirehttps://www.esentire.com/security-advisories/oracle-peoplesoft-zero-day-vulnerability-cve-2026-35273-exploited-by-shinyhuntersPublic source from esentire.com.
ShinyHunters Exploits Oracle PeopleSoft Zero-Day (CVE-2026-35273) to Breach Universities - The Hacker Newshttps://thehackernews.com/2026/06/shinyhunters-exploits-oracle-peoplesoft.htmlPublic source from thehackernews.com.
AL26-014 – FortiBleed leak of thousands of compromised credentials impacting Fortinet devices - Canadian Centre for Cyber Securityhttps://www.cyber.gc.ca/en/alerts-advisories/al26-014-fortibleed-leak-thousands-compromised-credentials-impacting-fortinet-devicesPublic source from cyber.gc.ca.
FortiBleed: 75,000 Fortinet Firewalls Compromised: Global Enterprises Exposed – Claim Your Ethical Disclosure | Hudson Rockhttps://www.hudsonrock.com/blog/fortibleed-75000-fortinet-firewalls-compromised-global-enterprises-exposed-claim-your-ethical-disclosurePublic source from hudsonrock.com.
SWK Cybersecurity News Recap June 2026https://www.swktech.com/swk-cybersecurity-news-recap-june-2026/Public source from swktech.com.
NAIC confirms PeopleSoft breach as cybercriminals target insurance regulatorshttps://www.insurancebusinessmag.com/us/news/cyber/naic-confirms-peoplesoft-breach-as-cybercriminals-target-insurance-regulators-580134.aspxPublic source from insurancebusinessmag.com.
Related signals
Grouped by why the signal is relevant.
CBSE Revaluation Portal Hit by Cyber Attack
On May 30, 2026, the CBSE (Central Board of Secondary Education) revaluation portal in India was hit by a cyber attack. The incident affected approximately 50 students, disrupting their access and allegedly altering revaluation-related records, causing confusion during the answer sheet review process.
Tata Electronics Confirms Cybersecurity Incident and Data Leak
Tata Electronics, a major supplier in electronics manufacturing and semiconductors for clients including Apple and Tesla, confirmed a cybersecurity incident. The incident involved the leak of substantial internal data, with reports citing over 630GB and more than 200,000 files. Hackers, reportedly linked to 'World Leaks', allegedly exposed component designs, specifications, and confidential documents. The confirmation and reporting of this incident occurred on June 28, 2026, raising supply chain concerns for its high-profile clients.
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KDDI Web Communications Customer Data Affected by KDDI Email System Breach
KDDI Web Communications, a subsidiary of KDDI, was impacted by the data breach in KDDI Corporation's email system, disclosed on June 28, 2026. The incident, caused by a third-party software vulnerability, led to the potential exposure of up to 14.2 million email addresses and passwords belonging to customers across six Japanese ISPs, including KDDI Web Communications.
KDDI Corporation Data Breach Exposes up to 14.2 Million Email Logins
Japanese telecommunications operator KDDI Corporation disclosed a data breach where threat actors gained unauthorized access to one of its email systems. This system was also used by five other internet service providers (ISPs) in Japan. The company discovered the compromise on June 17, 2026, and responded by blocking the attacker and implementing defensive measures. The investigation determined that hackers exploited a vulnerability in unnamed third-party software. Up to 14.2 million email addresses and passwords, including those of current, former, and inactive customers, may have been exposed. Some passwords were stored in hashed and/or encrypted form, but the company did not specify the encryption type or the percentage of plaintext passwords. KDDI has reported the incident to Japanese privacy and telecommunications regulators. The breach impacts KDDI Corporation and its partner ISPs.
JCOM Co., Ltd. Affected by KDDI Corporation Data Breach
JCOM Co., Ltd., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. JCOM customers' email addresses and passwords may have been compromised.
