Openshift-logging: lokistack authorisation is cached too broadly
Priority LOW 30CWE-1220Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00588 48th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Red Hat 3 advisories
- RHSA-2023:5095 Released 2023-09-20 · Red Hat rating ModerateLogging Subsystem 5.6.11 - Red Hat OpenShift security update
- RHOL 5.6 for RHEL 8 openshift-logging/lokistack-gateway-rhel8
- RHSA-2023:5096 Released 2023-09-20 · Red Hat rating ModerateLogging Subsystem 5.5.16 - Red Hat OpenShift security update
- RHOL 5.5 for RHEL 8 openshift-logging/lokistack-gateway-rhel8
- RHSA-2023:4933 Released 2023-09-13 · Red Hat rating ModerateLogging Subsystem 5.7.6 - Red Hat OpenShift security update
- RHOL 5.7 for RHEL 8 openshift-logging/lokistack-gateway-rhel8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHOL 5.5 for RHEL 8 | Fixed | RHSA-2023:5096 |
| RHOL 5.6 for RHEL 8 | Fixed | RHSA-2023:5095 |
| RHOL 5.7 for RHEL 8 | Fixed | RHSA-2023:4933 |
Not affected: 3 products
- RHOL 5.5 for RHEL 8
- RHOL 5.6 for RHEL 8
- RHOL 5.7 for RHEL 8
Timeline
- 2026-10-02 Threatist record created from CVE-2023-4456
- 2026-10-03 Alias added: GHSA-ccmh-37rx-6pp5
References
More Red Hat Openshift Logging vulnerabilities
- TI-2024-00175 Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation CVSS 3.1HIGH 7.8
Sources
- CVE-2023-4456 · CVE Program
- CVE-2023-4456 · NVD
- FIRST EPSS
- GHSA-ccmh-37rx-6pp5 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-4456 · Red Hat security data · CC BY 4.0
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