All vulnerabilities
CVE-2026-103470

In Internet2 Grouper before 7.5.1 (in some configurations), a user who is allowed to create or edit rules in the User Interface can escalate privileges.

Internet2 Grouper
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.4.1Also 7.5.1CVE List
Published30 Sep 2026Updated 30 Sep 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Affected versions 3

  • Grouperaffected: 5.8.3 through 5.22.5CVE List
  • Grouperaffected: 6.0.0 before 6.4.1CVE List
  • Grouperaffected: 7.0.0 before 7.5.1CVE List

References 1