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Critical severity · published Oct 13, 2026
CVE-2026-93895
IBM WebSphere Application Server Liberty Improper Access Control
9.1
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
WebSphere Application Server - Liberty · IBM
20.0.0.12 through 26.0.0.10 · source: vendor
WA
Websphere Application Server · Ibm
20.0.0.12 before 26.0.0.11 · source: NVD
Affected product
WA
WebSphere Application Server - Liberty
IBM
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93895
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-93895
vendor-advisory
https://www.ibm.com/support/pages/node/7292228
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