Vulnerability · Published Sep 22, 2026 · Assigned by ibm

CVE-2026-16426Multiple Vulnerabilities in IBM Concert Software

Medium 6.5

In plain English

A medium-severity server-side request forgery in Concert from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 93.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

IBM Concert 1.0.0 through 3.0.0 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Affected products (as reported)

Vendor	Product	Versions
IBM	Concert	1.0.0 – through 3.0.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

https://www.ibm.com/support/pages/node/7288830 vendor-advisory, patch