Vulnerability details

CVE-2026-16720

IBM API Connect

Multiple Vulnerabilities in IBM API Connect

CVSS 3.1

9.8Critical

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 attacker to obtain valid access tokens for other users due to improper authentication. Authentication against a connected directory service is not sufficiently enforced, which could allow another user's identity to be assumed.

CVSS scores

Score	Version	Source	Vector
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (ibm)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
IBM	API Connect	10.0.8.0 ≤ v ≤ 10.0.8.12	CVEProject cvelistV5 (CNA)
IBM	API Connect	12.1.0.0 ≤ v ≤ 12.1.1.2	CVEProject cvelistV5 (CNA)

References and advisories

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

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-11-07
Last updated: 2026-11-07
State: Published
Assigner (CNA): ibm
Kolun priority: 29 · Low

Exploit prediction (EPSS)

0.76%

Probability of exploitation in 30 days

55.7%

Percentile (among all CVEs)

Weaknesses (CWE)

CWE-287
Improper Authentication