CVE-2026-19283 IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
An authenticated attacker can steal etcd mTLS credentials by exploiting missing namespace validation in the Instana Agent Operator.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19283?
CVE-2026-19283 is a high-severity missing authorization vulnerability in IBM Observability with Instana (Agent), published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM Observability with Instana (Agent) Build 1.0.303 through 1.0.323 IBM Instana Agent Operator could allow an authenticated remote attacker to obtain sensitive information, caused by missing destination namespace validation when copying etcd mTLS client credentials from the openshift-etcd system namespace into an attacker-controlled namespace.
Weakness: CWE-863
Which versions are affected by CVE-2026-19283?
How do I fix CVE-2026-19283?
No fix has been published for CVE-2026-19283 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-19283 being exploited?
There is no known exploitation of CVE-2026-19283 in the wild and no public exploit code.
Sources
Also known as GHSA-j3vm-fghw-9vpj.