IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive information
Priority MEDIUM 51CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0097 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | WebSphere Application Server | 9.0; 8.5 | — | No fix listed | CNA |
- WebSphere Application Server VendorIBM Affected 9.0; 8.5 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* | 8.5.0.0 to before 8.5.5.31; 9.0.0.0 to before 9.0.5.29 | Vulnerable | IBM |
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* Versions 8.5.0.0 to before 8.5.5.31; 9.0.0.0 to before 9.0.5.29 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
IBM WebSphere Application Server — ibm.com/support/pages/node/7281649
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-12262 IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive informationPriority LOW 35
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14512
- 2026-10-03 Alias added: GHSA-p6cg-6q97-cwjw
References
More IBM Websphere Application Server vulnerabilities
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
- TI-2010-00403 modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through… CVSS 2.0HIGH 10.0
- TI-2019-03185 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
- TI-2020-03809 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
- TI-2025-24648 IBM WebSphere Application Server code execution CVSS 3.1CRITICAL 9.8
- TI-2020-03807 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-14512 · CVE Program
- CVE-2026-14512 · NVD
- FIRST EPSS
- GHSA-p6cg-6q97-cwjw · GitHub Advisory Database · CC BY 4.0
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