CVE-2026-33463 Operation on a Resource after Expiration or Termination in Kibana Leading to Unauthorized File Access
An attacker with an expired token can bypass expiration checks to access unauthorized content in Kibana.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-33463?
CVE-2026-33463 is a medium-severity authentication bypass vulnerability in Elastic Kibana, published on 28 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Operation on a Resource after Expiration or Termination (CWE-672) in Kibana can lead to unauthorized information disclosure. A logic error in how expiration timestamps were validated allowed a time-bounded access token to remain usable beyond its intended validity window, enabling an unauthenticated actor in possession of the token to retrieve the associated content after expiration.
Weakness: CWE-672
Which versions are affected by CVE-2026-33463?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | From 8.0.0 | 8.19.16, 9.3.5 |
elk Bitnami | From 8.0.0 | 8.19.16, 9.3.5 |
Products include Elastic Kibana.
How do I fix CVE-2026-33463?
Upgrade kibana to a fixed version for your release line: 8.19.16 or 9.3.5.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-33463 being exploited?
There is no known exploitation of CVE-2026-33463 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-33463, BIT-kibana-2026-33463, GHSA-fgvg-65vf-2w8h, MINI-2v22-454q-w284, MINI-46wq-cxcf-p73f, MINI-6pj2-vw29-wm4h and 3 more.