CVE-2026-101117: IBM WebSphere Extreme Scale (Critical, CVSS 9.1)
CVE-2026-101117CriticalIBM WebSphere Extreme Scale
- CVSS
- 9.1 Critical (v3.1)
- EPSS
- 0.4% chance of exploitation in the next 30 days (higher than 34.4% of CVEs)
- Exploited in the wild
- Not on CISA’s KEV list
- Public exploit
- None reported in public exploit databases
- Weakness
- CWE-16
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Published
- Nov 8, 2026
What it is
IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.2.2 could allow a remote attacker to bypass security restrictions due to improper Content Security Policy configuration.
Description from the National Vulnerability Database.
What to do
Check whether you run IBM WebSphere Extreme Scale, then apply the vendor’s fix or mitigation from the advisories below.
Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.