Critical severity · published Jul 28, 2026
CVE-2026-14974
IBM WebSphere Application Server is affected by cross-site scripting and deserialization vulnerabilities
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
IBM WebSphere Application Server 8.5, and 9.0 traditional could allow a remote attacker to execute arbitrary code caused by unsafe deserialization of untrusted data.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
WebSphere Application Server · IBM
8.5; 9.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-14974
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-14974
Vendor Advisory
https://www.ibm.com/support/pages/node/7281641
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