kgateway is a Cloud-Native API and AI Gateway. Versions 2.0.4 and below and 2.1.0-agw-cel-rbac through 2.1.0-rc.2 lack authentication, allowing any client with unrestricted network access to the xDS port to retrieve potentially sensitive configuration data including certificate data, backend service information, routing rules, and cluster metadata. This issue is solved in versions 2.0.5 and 2.1.0.
CVE-2025-64323
MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 96% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 5.0%
- KEV
- Not listed
Published
November 7, 2025
Last Modified
June 17, 2026
References (4)
- security-advisories@githubhttps://github.com/kgateway-dev/kgateway/issues/10651
- security-advisories@githubhttps://github.com/kgateway-dev/kgateway/pull/12471
- security-advisories@githubhttps://github.com/kgateway-dev/kgateway/pull/12535
- security-advisories@githubhttps://github.com/kgateway-dev/kgateway/security/advisories/GHSA-4766-x535-jw3r
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2025-64323?
CVE-2025-64323 is a medium vulnerability published on November 7, 2025. kgateway is a Cloud-Native API and AI Gateway. Versions 2.0.4 and below and 2.1.0-agw-cel-rbac through 2.1.0-rc.2 lack authentication, allowing any client with unrestricted network access to the xDS port to retrieve potentially sensitive configuration data including certificate data, backend…
When was CVE-2025-64323 disclosed?
CVE-2025-64323 was first published in the National Vulnerability Database on November 7, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-64323 actively exploited?
CVE-2025-64323 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-64323?
CVE-2025-64323 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2025-64323?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-64323, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-64323
Is Your Infrastructure Affected by CVE-2025-64323?
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