Vulnerability in django-registration (CVE-2021-21416)
Summary
Vulnerability in django-registration (CVE-2021-21416). Risk of unauthorized operations or information disclosure. Exploitable via RegistrationView. Mitigation: upgrade to 3.1.2 or later.
Original description
The description as published by the source.
django-registration is a user-registration application for Django.
Impact
The django-registration package provides tools for implementing user-account registration flows in the Django web framework. In django-registration prior to 3.1.2, the base user-account registration view did not properly apply filters to sensitive data, with the result that sensitive data could be included in error reports rather than removed automatically by Django.
Triggering this requires the following conditions:
- A site is using django-registration < 3.1.2
- The site has detailed error reports (such as Django's emailed error reports to site staff/developers) enabled
- A server-side error (HTTP 5xx) occurs during an attempt by a user to register an account
Under these conditions, recipients of the detailed error report will see all submitted data from the account-registration attempt, which may include the user's proposed credentials (such as a password).
Patches
As of version 3.1.2, django-registration properly applies Django's sensitive_post_parameters() decorator to the base user-registration view, which will cause all data from the HTTP request body to be filtered from detailed error reports in the event of a server-side crash during user account registration.
Note that as applied, this filters all HTTP request data from error reports. To selectively allow some fields but not others, see Django's…
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2021-21416 has been found in django-registration.
Attackers can target a specific entry point like RegistrationView over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade django-registration to 3.1.2 or later.
If unsure, ask your IT team or search "django-registration CVE-2021-21416" on the vendor's site.
CVE-2021-21416 (django-registration) — CWE-201
Attack vector: local
Attack surface: RegistrationView
Patched: 3.1.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-201) exists in django-registration. Attackers reach the vulnerable code path via RegistrationView.
Check the vendor advisory for the affected versions of django-registration. Attack surface: RegistrationView.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 3.1.2.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'django-registration' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'django-registration' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
django-registrationを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade django-registration to 3.1.2ステージング環境で 3.1.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2021-21416 python-django-registration Fixed in: 3.3-1
- Ubuntu UBUNTU-CVE-2021-21416 python-django-registration
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com