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OpenObserve: Empty external password allows authentication bypass

9.8CriticalCNA
Exploited
No known exploitation
Fix
Fixed in 1.1.0
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 1.1.0.

Published
Last modified
Reference
Last checked
27/100 · provisional
None on Exploit-DB, Metasploit or GitHub
On X
View the cve.now post

Summary

OpenObserve is a cloud-native observability platform. Prior to 1.1.0, the shared authentication validator in src/api/common/src/auth/validator.rs accepts an empty or whitespace-only HTTP Basic password for an account whose password_ext value is missing or empty. SSO-provisioned and migration-created users can have this state, allowing an unauthenticated attacker who knows an affected user's email address and organization to authenticate on protected non-ingestion API routes with the victim's role and permissions. A compromised privileged account can expose or modify telemetry, alerts, streams, users, and security configuration. An account with search permission can submit a DataFusion COPY ... TO statement through the search API to create or overwrite attacker-controlled files at service-process-writable locations, creating a conditional escalation to pre-authentication remote code execution. This issue is fixed in version 1.1.0.

cve.now Index

27Pcve.now Index 27 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity9.8/10CVSS 9.8
  • No patch0/5No signal

What would change the score

  • Would score about 72 if added to CISA KEV
  • Would score about 67 if CISA's SSVC rates exploitation active
  • Would score about 32 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 1.1.0.

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-126065 (OpenObserve: Empty external password allows authentication bypass), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-126065 (entry last updated 2026-11-10):
Affected:
- openobserve openobserve: fixed in 1.1.0
Fixed versions: 1.1.0.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-126065 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-126065 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://github.com/openobserve/openobserve/security/advisories/GHSA-7w4v-2c9r-q94v
- https://github.com/openobserve/openobserve/pull/15054
- https://github.com/openobserve/openobserve/commit/46678ea8daba94c3904286471794f80c5a74ecea
- https://github.com/openobserve/openobserve/commit/dc5c657002d97e9e29726cefcadec49cae755e1a
- https://github.com/openobserve/openobserve/releases/tag/v1.1.0
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-126065
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-126065.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Posted on X by cve.now

Affected versions

  • openobserve openobserve

    fixed in 1.1.0

Evidence 7

Vendor advisory · 1

Establishes: Affected and fixed versions.

  1. Advisory

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Other links · 4

  1. Repository
  2. Repository
  3. Repository
  4. Repository

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-126065

Is CVE-2026-126065 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-126065?

openobserve: before 1.1.0.Source: cve.now feed data

How do I fix CVE-2026-126065?

Upgrade to a fixed version: 1.1.0.Source: cve.now feed data