Answer in brief
CVE-2026-11897 records a High severity (CVSS 7.5) vulnerability in IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability with HTTP/2. The current sources do not mark it as known exploited. The current feed maps IBM/WebSphere Application Server - Liberty (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps IBM/WebSphere Application Server - Liberty (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/WebSphere Application Server - Libertygeneric | 17.0.0.3 | Not reported |
Published upstream
Jul 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service, caused by sending a specially crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-11897 records a High severity (CVSS 7.5) vulnerability in IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability with HTTP/2. The current sources do not mark it as known exploited. The current feed maps IBM/WebSphere Application Server - Liberty (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps IBM/WebSphere Application Server - Liberty (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/WebSphere Application Server - Libertygeneric | 17.0.0.3 | Not reported |
Published upstream
Jul 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service, caused by sending a specially crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
Quoted source text, attributed separately from HOL analysis.