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Critical

Drupal core - SA-CORE-2021-008

  • Disclosed: 15.09.2021
  • Updated: 11.10.2026 13:17

Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site.

This vulnerability is mitigated by three factors:

  1. The JSON:API or REST File upload modules must be enabled on the site.
  2. An attacker must have access to a file upload via JSON:API or REST.
  3. The site must employ a file validation module.

This advisory is not covered by Drupal Steward.

Also see GraphQL - Moderately critical - Access bypass - SA-CONTRIB-2021-029 which addresses a similar vulnerability for that module.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package drupal/core >= 8.0.0, < 8.9.19, >= 9.1.0, < 9.1.13, >= 9.2.0, < 9.2.6 8.9.19, 9.1.13, 9.2.6
Composer package drupal/graphql >= 4.0.0, < 4.2.0 4.2.0
Drupal (core) drupal/core >= 8.0.0, < 8.9.19, >= 9.1.0, < 9.1.13, >= 9.2.0, < 9.2.6 8.9.19, 9.1.13, 9.2.6
Drupal module drupal/graphql >= 4.0.0, < 4.2.0 4.2.0

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-284, CWE-434
Platform
Composer, Drupal
Package
drupal/core, drupal/graphql
Disclosed
15.09.2021
Updated
11.10.2026 13:17

Sources and licenses

OSV / GitHub Advisory Database - GHSA-v8wr-r69p-mmwx - CC BY 4.0

OSV / GitHub Advisory Database - DRUPAL-CORE-2021-008 - CC BY-SA 2.0; code GPL-2.0-or-later

OSV / GitHub Advisory Database - DRUPAL-CONTRIB-2021-029 - CC BY-SA 2.0; code GPL-2.0-or-later

Vulnerability history: drupal/core

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (146) in the archive
Total entries
146
First → latest
02.2018 09.2026
Without a fix
3
Exploited in attacks
5

Severity breakdown

  • Critical 15
  • High 40
  • Medium 60
  • Low 5
  • Unrated 26

Disclosures per year

Severity:
  1. Drupal core - SA-CORE-2021-008 this entry
    Critical · 9.8 CVE-2020-13675 >= 8.0.0, < 8.9.19, >= 9.1.0, < 9.1.13, >= 9.2.0, < 9.2.6 8.9.19, 9.1.13, 9.2.6
  2. Drupal Core has a SQL Injection issue
    Critical · 9.8 Exploited in attacks CVE-2026-9082 >= 8.9.0, < 10.4.10, >= 10.5.0, < 10.5.10, >= 10.6.0, < 10.6.9, >= 11.0.0, < 11.1.10, >= 11.2.0, < 11.2.12, >= 11.3.0, < 11.3.10 10.4.10, 10.5.10, 10.6.9, 11.1.10, 11.2.12, 11.3.10
  3. Drupal core contains a potential PHP Object Injection vulnerability
    High · 9.8 CVE-2024-55638 >= 8.8.0, < 10.2.11, >= 10.3.0, < 10.3.9, >= 7.0, < 7.102 10.2.11, 10.3.9, 7.102
  4. Drupal core contains a potential PHP Object Injection vulnerability
    High · 9.8 CVE-2024-55637 >= 8.8.0, < 10.2.11, >= 10.3.0, < 10.3.9, >= 11.0.0, < 11.0.8 10.2.11, 10.3.9, 11.0.8
  5. Drupal core Arbitrary PHP code execution
    High · 7.8 ghsa-gxxj-g9v8-w28p >= 7.0.0, < 7.75, >= 8.0.0, < 8.8.12, >= 8.9.0, < 8.9.10, >= 9.0.0, < 9.0.9 7.75, 8.8.12, 8.9.10, 9.0.9
  6. Drupal core Multiple vulnerabilities due to the use of the third-party library Archive_Tar
    High · 8.1 ghsa-98h9-727m-44qv >= 7.0.0, < 7.69, >= 8.0.0, < 8.7.11, >= 8.8.0, < 8.8.1 7.69, 8.7.11, 8.8.1
  7. Drupal Core Insufficient Contextual Links validation leads to Remote Code Execution
    Critical ghsa-7v68-3pr5-h3cr >= 8.0.0, < 8.5.8, >= 8.6.0, < 8.6.2 8.5.8, 8.6.2
  8. Drupal core Remote Code Execution
    Critical ghsa-6mgp-v5cm-ghg5 >= 7.0, < 7.60, >= 8.0.0, < 8.5.8, >= 8.6.0, < 8.6.2 7.60, 8.5.8, 8.6.2
  9. Drupal core - SA-CORE-2024-001
    High · 7.5 CVE-2024-11941 >= 8.0.0, < 10.1.8, >= 10.2.0, < 10.2.2 10.1.8, 10.2.2
  10. Drupal core - SA-CORE-2023-006
    Critical CVE-2023-5256 >= 8.7.0, < 9.5.11, >= 10.0.0, < 10.0.11, >= 10.1.0, < 10.1.4 9.5.11, 10.0.11, 10.1.4
  11. Drupal core - SA-CORE-2023-005
    Critical CVE-2023-31250 >= 8.0.0, < 9.4.14, >= 9.5.0, < 9.5.8, >= 10.0.0, < 10.0.8 9.4.14, 9.5.8, 10.0.8
  12. Drupal core - SA-CORE-2022-016
    High · 7.5 CVE-2022-39261 >= 8.0.0, < 9.3.22, >= 9.4.0, < 9.4.7 9.3.22, 9.4.7
  13. Drupal core - SA-CORE-2022-014
    High · 7.2 CVE-2022-25277 >= 8.0.0, < 9.3.19, >= 9.4.0, < 9.4.3 9.3.19, 9.4.3
  14. Drupal core - SA-CORE-2022-012
    High · 7.5 CVE-2022-25275 >= 8.0.0, < 9.3.19, >= 9.4.0, < 9.4.3 9.3.19, 9.4.3
  15. Drupal core - SA-CORE-2022-011
    High · 7.5 CVE-2022-31042 >= 8.0.0, < 9.2.21, >= 9.3.0, < 9.3.16 9.2.21, 9.3.16
  16. Drupal core - SA-CORE-2022-010
    High · 8.0 CVE-2022-29248 >= 8.0.0, < 9.2.20, >= 9.3.0, < 9.3.14 9.2.20, 9.3.14
  17. Drupal Access Control Bypass
    High CVE-2011-2687 >= 7.0, < 7.3 7.3
  18. Drupal Open Redirect
    High · 7.4 CVE-2016-3164 >= 8.0, < 8.0.4, >= 7.0, < 7.43, >= 6.0, < 6.38 8.0.4, 7.43, 6.38
  19. Drupal Form API ignores access restrictions on submit buttons
    High · 7.5 CVE-2016-3165 >= 6.0, < 6.38 6.38
  20. Drupal saving user accounts can sometimes grant the user all roles
    High · 8.1 CVE-2016-3169 >= 6.0, < 6.38, >= 7.0, < 7.43 6.38, 7.43
  21. Drupal Brute force amplification attacks via XML-RPC
    High · 7.5 CVE-2016-3163 >= 7.0, < 7.43, >= 6.0, < 6.38 7.43, 6.38
Show more (20) Showing 21 of 55

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