Vulnerability · Published Nov 7, 2026 · Assigned by ibm

CVE-2026-17410Multiple Vulnerabilities in IBM API Connect

Critical 9.9

In plain English

A critical-severity argument injection in API Connect from IBM. There are no confirmed reports of exploitation so far.

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)–no EPSS score yet

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 access and modify other tenants' portal data due to improper neutralization of argument delimiters.

Affected products (as reported)

Vendor	Product	Versions
IBM	API Connect	12.1.0.0 – through 12.1.1.210.0.8.0 – through 10.0.8.12

Weakness: CWE-88 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

https://www.ibm.com/support/pages/node/7295635 vendor-advisory, patch
https://www.ibm.com/support/pages/node/7295637 vendor-advisory, patch