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High, CVSS 7.5

Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass

CVE-2025-12466GHSA-jqmq-fpwv-p925

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (drupal/simple_oauth 6.0.7), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
  • CVE-2025-12466: 0.36% estimated exploitation activity in the next 30 days; percentile 29.83 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass. This issue affects Simple OAuth (OAuth2) & OpenID Connect: from 6.0.0 before 6.0.7.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-jqmq-fpwv-p925

Agent brief

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# Patch Next advisory brief: CVE-2025-12466

Advisory: Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass
IDs: CVE-2025-12466, GHSA-jqmq-fpwv-p925
Record: https://patchnext.com/advisories/cve-2025-12466 (revision 1, source checked 26 Oct 2026, 14:34 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: drupal/simple_oauth 6.0.7. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist drupal/simple_oauth: affected >= 6.0.0, < 6.0.7; fixed in 6.0.7

## Suggested inspection (read-only)
- Packagist drupal/simple_oauth: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on drupal/simple_oauth.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-jqmq-fpwv-p925 (GitHub-reviewed advisory GHSA-jqmq-fpwv-p925 lists affected ranges: Packagist drupal/simple_oauth >=6.0.0 <6.0.7)

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