Skip to main content
CVE-2026-35273BreachPublished

Dutch Police Arrest ‘Reformed’ Hacker in Shiny Hunters Investigation

Source Krebs on Security

0
Compare
Authoritative record:CVE-2026-35273· Critical 9.8

Exploited in the wild · KEV due 15 Jun 2026 · public detection template (Nuclei) : block it and hunt for it in your logs now.

Data as of 28 Sep 2026, 15:15 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 11 Jun 2026

  2. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  3. Exploited in the wild: evidence found.

    Listed in CISA KEV 1 day after disclosure

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by Oracle

    , 71 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. In Threat Radar

    record ingested

    , 1 hour after disclosure

  4. Added to CISA KEV (opens in a new tab)

    exploitation confirmed · ransomware use known

    , 1 day after disclosure

  5. KEV remediation due

    US federal deadline

    , 4 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationPeopleSoft Enterprise PeopleToolsAffected
  • =8.61
  • =8.62
Fixed in–
Mavencom.oracle/peoplesoft-enterprise-peopletollspkg:maven/com.oracle/peoplesoft-enterprise-peopletollsOther threatsAffected
  • =8.61
  • =8.62
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

Dutch authorities arrested Pepijn van der Stap, a convicted cybercriminal linked to the hacker group ShinyHunters, on suspicion of aiding data thefts and extortions. Van der Stap, known by the alias 'Umbreon,' was involved in multiple data breaches and extortion campaigns, including a major social engineering attack on Odido, the largest Dutch mobile provider, compromising data of over 6.2 million people. Following his arrest, ShinyHunters escalated attacks, breaching the FBI's job application site and extorting the Russian ransomware group Cl0p. The FBI breach exploited a recently patched PeopleSoft vulnerability (CVE-2026-35273). ShinyHunters used evasion techniques to bypass mitigations. Van der Stap had previously been convicted and sentenced to prison, released in late 2025, and had publicly claimed to be reformed before his recent arrest. The investigation and arrests are ongoing, with Dutch authorities seeking public assistance to identify members involved in social engineering intrusions.

References

Community reviews

Loading reviews…