November 14, 2026

CVE Watchtower

CVE-2026-16712Ibm Api Connect Authorization Bypass Through User-Controlled Key

NVDCVSS scored by psirt@us.ibm.com

Vulnerability Summary

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 from other tenants due to improper authorization. Identifiers supplied in requests are not sufficiently checked against the user's permissions, which could allow access to data belonging to other tenants.
Severity Level
HIGH(7.7)
Published Date
Nov 7, 2026
Last Modified
Nov 10, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.44%Probability
Root Weakness (CWE)
CWE-639: Authorization Bypass Through User-Controlled Key β†—
The system does not prevent one user from accessing another user data or record by modifying the key value identifying the data.
CVSS v3.1 Base Metrics — Score 7.7 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Ibm Api Connect >= 10.0.8.0 and < 10.0.8.13
  • Ibm Api Connect >= 12.1.0.0 and < 12.1.1.3
Patched Versions
  • Ibm Api Connect 10.0.8.13
  • Ibm Api Connect 12.1.1.3

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is high.

  1. Check whether you run Ibm Api Connect and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 7, 2026Published
  • Nov 10, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 05:11 UTC