Deserialization of untrusted data in IBM webMethods Integration
Priority MEDIUM 50CWE-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 webMethods Integration (on prem) 10.15, 10.11 could allow an unauthenticated remote attacker to execute arbitrary code on the system due to the deserialization of untrusted data.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00849 58th 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 | webMethods Integration (on prem) | 10.15, 10.11 | — | No fix listed | CNA |
- webMethods Integration (on prem) VendorIBM Affected 10.15, 10.11 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12118
- 2026-10-03 Alias added: GHSA-9597-g68j-5wfj
References
More IBM Webmethods Integration vulnerabilities
- TI-2024-30185 IBM webMethods Integration code execution CVSS 3.1CRITICAL 9.9
- TI-2025-24671 IBM webMethods Integration Deserialization CVSS 3.1HIGH 8.8
- TI-2025-24656 IBM webMethods Integration Sever XML external entity injection CVSS 3.1HIGH 8.8
- TI-2025-24754 IBM webMethods Integration code execution CVSS 3.1HIGH 8.8
- TI-2024-30184 IBM webMethods Integration privilege escalation CVSS 3.1HIGH 8.8
- TI-2025-24655 IBM webMethods Integration Sever code execution CVSS 3.1HIGH 7.2
Sources
- CVE-2026-12118 · CVE Program
- CVE-2026-12118 · NVD
- FIRST EPSS
- GHSA-9597-g68j-5wfj · GitHub Advisory Database · CC BY 4.0
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