# CVE-2021-41126: Deleted Admin Can Sign In to Admin Interface

Source: https://junglewise.ai/threats/cve-2021-41126-deleted-admin-can-sign-in-to-admin-interface  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-10-06  
License: CC BY 4.0 with a link back

CVE-2021-41126 · Severity: low · CVSS 3.1 · Published 2021-10-06

Deleted Admin Can Sign In to Admin Interface

Technologies: [october/october (Packagist)](https://junglewise.ai/threats/technologies/october-october), [october/system (Packagist)](https://junglewise.ai/threats/technologies/october-system). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2021-41126 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-41126 being exploited in the wild.

**How severe is CVE-2021-41126?** Low severity, with a CVSS score of 3.1, published 6 October 2021.

**Which products and versions are affected?** october/october (Packagist) ECOSYSTEM:introduced=2.1.0,fixed=2.1.12; october/system (Packagist) ECOSYSTEM:introduced=2.1.0,fixed=2.1.12.

**Is there a fix for CVE-2021-41126?** Yes. october/october (Packagist): upgrade to 2.1.12 or later; october/system (Packagist): upgrade to 2.1.12 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2021-41126?** Check whether you run october/october (Packagist) or october/system (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- october/october (Packagist): upgrade to 2.1.12 or later

  ```sh
  composer require october/october:^2.1.12
  ```

- october/system (Packagist): upgrade to 2.1.12 or later

  ```sh
  composer require october/system:^2.1.12
  ```


## Affected products

- october/october (Packagist) ECOSYSTEM:introduced=2.1.0,fixed=2.1.12
- october/system (Packagist) ECOSYSTEM:introduced=2.1.0,fixed=2.1.12

## Identifiers

- CVE-2021-41126
- GHSA-6gjf-7w99-j7x7

## Related threats

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- [October CMS Twig sandbox bypass in Safe Mode](https://junglewise.ai/threats/cve-2026-46696-october-cms-twig-sandbox-bypass-in-safe-mode)
- [October CMS incomplete URL scheme validation in image resizer](https://junglewise.ai/threats/october-cms-incomplete-url-scheme-validation-in-image-resizer-f7555212)
- [October CMS: Editor Sub-Permission Bypass for Asset and Blueprint File Operations](https://junglewise.ai/threats/cve-2026-29179-october-cms-editor-sub-permission-bypass-for-asset-and-blueprint)
- [October CMS: Reflected XSS via DataTable Form Widget](https://junglewise.ai/threats/cve-2026-27937-october-cms-reflected-xss-via-datatable-form-widget)
