CVE-2026-63645 OpenObserve: Unauthenticated /config/runtime endpoint exposes PostgreSQL database credentials
Unauthenticated access to the /config/runtime endpoint exposes PostgreSQL credentials and internal deployment details in OpenObserve.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-63645?
CVE-2026-63645 is a high-severity vulnerability in openobserve, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2026-63645?
How do I fix CVE-2026-63645?
No fix has been published for CVE-2026-63645 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-63645 being exploited?
There is no known exploitation of CVE-2026-63645 in the wild and no public exploit code.
Sources
Also known as GHSA-v496-g5c9-vqxw.