Vulnerability Description
OpenObserve is a cloud-native observability platform. Prior to 0.90.3, OpenObserve registers the /config/runtime endpoint without authentication and serializes the complete server configuration after applying the hide_sensitive_fields keyword filter. The filter does not recognize dsn or creds field names, so meta_postgres_dsn, meta_postgres_ro_dsn, meta_ddl_dsn, and usage_reporting_creds can be returned in plaintext to an unauthenticated network client. PostgreSQL deployments can expose database credentials, and the same response can disclose the root administrator email address, internal NATS address, filesystem layout, and other deployment details. This issue is fixed in version 0.90.3.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/openobserve/openobserve/commit/4f3db1cf790ffe8ea065d98f87344e
- https://github.com/openobserve/openobserve/pull/12220
- https://github.com/openobserve/openobserve/releases/tag/v0.90.3
- https://github.com/openobserve/openobserve/security/advisories/GHSA-v496-g5c9-vq
FAQ
What is CVE-2026-63645?
CVE-2026-63645 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenObserve is a cloud-native observability platform. Prior to 0.90.3, OpenObserve registers the /config/runtime endpoint without authentication and serializes the complete server configuration after ...
How severe is CVE-2026-63645?
CVE-2026-63645 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63645?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.