CVE-2026-9322IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities
- 7.5HighCVSS base score
- 0.56%Exploitation in 30 daysEPSS · top 53% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 are vulnerable to a denial of service via a crafted HTTP request.
Timeline
ID reserved
By ibm
- 2 months later
· 2 months later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ibmCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
IBM · WebSphere Application Server
- affected 9.0
- affected 8.5
IBM · WebSphere Application Server - Liberty
- affected 17.0.0.3 – ≤ 26.0.0.7
What to do
Solution: IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71585 and PH71670. For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.7:· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71585--OR--· Apply Fix Pack 26.0.0.8 or later (targeted availability 3Q2026).For IBM WebSphere Application Server traditional:For V9.0.0.0 through 9.0.5.28:· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71670--OR--· Apply Fix Pack 9.0.5.29 or later (targeted availability 3Q2026). For V8.5.0.0 through 8.5.5.30:· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves PH71670--OR--· Apply Fix Pack 8.5.5.31 or later (targeted availability 3Q2026).Additional interim fixes may be available and linked off the interim fix download page.
References
References1
- https://www.ibm.com/support/pages/node/7278576 (opens in a new tab)vendor-advisorypatch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-51230 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-9322)Record last updated .