---
id: CVE-2026-63645
title: OpenObserve is a cloud-native observability platform
summary: >-
  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 ke…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
vendor: openobserve
product: openobserve
affected:
  - openobserve < 0.90.3
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T18:17:19.053'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63645'
references:
  - url: >-
      https://github.com/openobserve/openobserve/commit/4f3db1cf790ffe8ea065d98f87344e839ec6e477
    label: security-advisories@github.com
  - url: 'https://github.com/openobserve/openobserve/pull/12220'
    label: security-advisories@github.com
  - url: 'https://github.com/openobserve/openobserve/releases/tag/v0.90.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/openobserve/openobserve/security/advisories/GHSA-v496-g5c9-vqxw
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T17:48:30.401Z'
epss: 0.00333
epssPercentile: 0.23831
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.