Vulnerability in Red Hat Data Grid 8
CVE-2026-85511
A flaw was found in EAP's Elytron. An EAP application whose security domain is backed by an Elytron token-realm with oauth2-introspection would allow parameter substitution due to missing URL encoding.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-85511 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:70228 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:70229 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:70230 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:70277 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-85511?
- CVE-2026-85511 is a medium-severity vulnerability in Red Hat Data Grid 8, classified under Authentication Bypass by Spoofing. CVSS score: 4.2/10. Published 2026-09-18.
- How severe is CVE-2026-85511?
- Medium severity. CVSS v3 base score is 4.2 out of 10.