CVE-2023-4456: Openshift-logging: lokistack authorisation is cached too broadly

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-21 · updated 2026-06-17
Weakness: CWE-1220

Description

A flaw was found in openshift-logging LokiStack. The key used for caching is just the token, which is too broad. This issue allows a user with a token valid for one action to execute other actions as long as the authorization allowing the original action is still cached.

Affected products

RedHat Openshift Logging: all versions

References

https://access.redhat.com/errata/RHSA-2023:4933
https://access.redhat.com/errata/RHSA-2023:5095
https://access.redhat.com/errata/RHSA-2023:5096
https://access.redhat.com/security/cve/CVE-2023-4456
https://bugzilla.redhat.com/show_bug.cgi?id=2233087
https://access.redhat.com/errata/RHSA-2023:4933
https://access.redhat.com/errata/RHSA-2023:5095
https://access.redhat.com/errata/RHSA-2023:5096
https://access.redhat.com/security/cve/CVE-2023-4456
https://bugzilla.redhat.com/show_bug.cgi?id=2233087

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