# CVE-2026-17309

Improper certificate validation in IBM API Connect enabling data disclosure and config tampering

- Page: https://www.vulneraibility.com/cve/CVE-2026-17309
- CVSS: 8.0
- Known exploited: not in CISA KEV as of our last sync
- Weakness: CWE-295
- Published: 2026-11-07

## Affected versions

- IBM API Connect: affected >= 12.1.0.0 and <= 12.1.1.2

A version outside these ranges is not a statement that it is unaffected.

## Impact

Remote attackers can bypass TLS cert validation to obtain sensitive info and modify configuration, enabling credential theft, API tampering, and service compromise.

## Action

Immediate action required

## Recommendation

Apply vendor fixes/mitigations ASAP; restrict management API access and monitor logs.

## References

- [patch] https://www.ibm.com/support/pages/node/7295635

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.