CVE-2026-11897
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
IBM WebSphere Application Server Liberty is vulnerable to a denial of service (DoS) attack via a specially crafted request that causes excessive memory consumption.
Risk Assessment
A remote attacker can exhaust server memory, leading to service unavailability and potential application downtime.
Recommendation
Upgrade IBM WebSphere Application Server Liberty to a patched version or implement rate limiting and request filtering.
Other vulnerabilities in IBM WebSphere Application Server Liberty
See all- CVE-2026-95695High
IBM WebSphere Application Server - Liberty 20.0.0.12 through 26.0.0.10 could allow a remote attacker to bypass security restrictions due to incorrect authorization.
- CVE-2026-93905High
IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.10 could allow an unauthenticated remote attacker to corrupt the persisted status of batch job instances. The vulnerability can be exploited without authentication, increasing the risk.
- CVE-2026-105443High
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 has insufficient isolation between servers sharing an install. This could lead to unauthorized access or security breaches between applications.
- CVE-2026-3621High
IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.4 is vulnerable to identity spoofing under limited conditions when an application is deployed without authentication and authorization configured.
- CVE-2026-93909Critical
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 is vulnerable by an authentication bypass vulnerability when samlWeb-2.0 feature is enabled.
- CVE-2026-93895Critical
IBM WebSphere Application Server - Liberty 20.0.0.12 through 26.0.0.10 could allow an unauthenticated remote attacker to bypass access controls configured on gRPC service methods.
- CVE-2026-14525Critical
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 IBM WebSphere Application Server Liberty is vulnerable to an authentication bypass when the rtcomm-1.0 or rtcommGateway-1.0 feature is enabled.
- CVE-2026-10571Medium
IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.8 is affected by a denial of service caused by insecure deserialization. A low-privileged, administrative user could exploit this vulnerability to consume system resources when the restConnector-2.0 feature is enabled.
- CVE-2026-18499High
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives.
- CVE-2026-14980High
IBM WebSphere Application Server Liberty is vulnerable to cross-site request forgery (CSRF), which could allow an attacker to perform SSRF attacks with elevated privileges when the collectiveController-1.0 feature is enabled.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS