CVE-2026-11722 json
IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty HTTP Request Smuggling
published 2026-09-18 51 d ago modified 2026-10-22 17 d ago also EUVD-2026-83290
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 are affected by an HTTP request smuggling vulnerability.
Patch / fix
- ibm.com/support/pages/node/7286610 advisory
- ibm.com/support/pages/node/7286611 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 51 d ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- IBM WebSphere Application Server
- IBM WebSphere Application Server - Liberty
Classification
- Weakness
-
- CWE-444 Inconsistent Interpretation of HTTP Requests
References
-
ibm.com
/support/pages/node/7286610
vendor-advisory, patch
-
ibm.com
/support/pages/node/7286611
vendor-advisory, patch
Sources
- CVE List CVE-2026-11722
- NVD CVE-2026-11722
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.