CVE-2026-33463
Operation on a Resource after Expiration or Termination in Kibana Leading to Unauthorized File Access
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.
INFO
Published Date :
May 28, 2026, 8:16 p.m.
Last Modified :
May 29, 2026, 9:18 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 271b6943-45a9-4f3a-ab4e-976f3fa05b5a | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply the available Kibana update.
- Validate token expiration logic.
- Review access control mechanisms.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33463.
| URL | Resource |
|---|---|
| https://discuss.elastic.co/t/8-19-16-9-3-5-security-update-esa-2026-33/386551 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33463 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33463
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33463 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33463 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 29, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.19.16 *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (excluding) 9.3.5 Added Reference Type Elastic: https://discuss.elastic.co/t/8-19-16-9-3-5-security-update-esa-2026-33/386551 Types: Vendor Advisory -
New CVE Received by [email protected]
May. 28, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-672 Added Reference https://discuss.elastic.co/t/8-19-16-9-3-5-security-update-esa-2026-33/386551