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Multiple Vulnerabilities in IBM API Connect

9.1CriticalCNA
Exploited
No known exploitation
Fix
Fixed in 12.1.1.3
Who is exposed
Specific setups only

Do first: Upgrade to a fixed version: 12.1.1.3.

Published
Last modified
0.56% · 46th percentile
17/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub
On X
View the cve.now post

Summary

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to obtain sensitive information and modify or delete data belonging to other tenants due to missing authorization.

cve.now Index

17Pcve.now Index 17 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure8/25Specific setups only, reachable over the network
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity9.1/10CVSS 9.1
  • No patch0/5No signal

What would change the score

  • Would score about 67 if added to CISA KEV
  • Would score about 62 if CISA's SSVC rates exploitation active
  • Would score about 24 if CISA's SSVC rates it automatable

What to do

  • Upgrade to a fixed version: 12.1.1.3.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Posted on X by cve.now

Affected versions

  • IBM API Connect

    From 12.1.0.0 · through 12.1.1.2

Evidence 1

  1. Patch

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-17066

Is CVE-2026-17066 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: cve.now feed data

What does this mean?

Missing authorization checks let one tenant obtain sensitive information and modify or delete data that belongs to other tenants.Source: ibm.com, cve.org

Which versions are affected by CVE-2026-17066?

API Connect: from 12.1.0.0 through 12.1.1.2.Source: cve.now feed data

Am I affected, and how do I check?

IBM API Connect versions 12.1.0.0 through 12.1.1.2 are affected. To check an installed version, look up the API Connect version in its admin or management console or installation records.Source: ibm.com, cve.org

How do I fix CVE-2026-17066?

Upgrade to v12.1.1.3, which the IBM advisory names as the fix. The facts list no workaround, so the upgrade is the stated remedy.Source: ibm.com, cve.org