Vulnerability · Published Sep 10, 2026 · Assigned by ibm
CVE-2026-19646Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent
Critical 9.1
In plain English
A critical-severity security flaw in Common Licensing from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.5%top 55.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM Common Licensing Agent 9.0, Agent 9.0.0.1, Agent 9.0.0.2, ART 9.0, ART 9.0.0.1, and ART 9.0.0.2 could allow a remote attacker to redirect users to an arbitrary domain due to improper validation of the HTTP Host header.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | Common Licensing | Agent 9.0Agent 9.0.0.1Agent 9.0.0.2ART 9.0ART 9.0.0.1ART 9.0.0.2 |
Weakness: CWE-1149 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- https://www.ibm.com/support/pages/node/7286490 vendor-advisory, patch