Unauthenticated SQLi in a widely used IBM enterprise decisioning product enabling web‑shell upload and remote code execution across deployments.
CVE-2026-18658
Unauthenticated SQLi in IBM ODM enables web shell upload and remote code execution
WAF coverage: SQL injection. Signatures match well at the request layer.
Also consider: parameterized queries · ORM
Is CVE-2026-18658 being exploited?
Not confirmed. CVE-2026-18658 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.43% probability of exploitation in the next 30 days.
How severe is CVE-2026-18658?
CVE-2026-18658 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-18658?
Yes. A fix has been recorded for CVE-2026-18658. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-18658 affect?
CVE-2026-18658 affects IBM Operational Decision Manager 9.6.0.0, IBM ODM 9.5.0.1 / 9.5.0.0, IBM ODM 9.0.0.1, IBM ODM 8.12.0.1, and 2 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-18658?
Apply IBM updates immediately; restrict external access, deploy WAF rules, and hunt for web shells.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated SQL injection allowing arbitrary SQL execution, write a web shell to web root, and obtain remote code execution on the server.
Immediate action required
- affected9.6.0.0
- affected9.5.0.0
- affected8.11.1.0
- affected8.11.0.1
- affected8.12.0.1
- affected9.5.0.1
- affected9.0.0.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.