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Vulnerability record · CVE-2026-63645 · published 24 September 2026

CVE-2026-63645: Information exposure vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.33% · top 76.1% CWE-200 · Information exposure Received
7.5CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
24 Sep 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

LinkTags
https://github.com/openobserve/openobserve/commit/4f3db1cf790ffe8ea065d98f87344e839ec6e477
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-vqxw

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Source: NIST National Vulnerability Database (record CVE-2026-63645), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.