# CVE-2026-27982: django-allauth open redirect in SAML IdP-initiated SSO

Source: https://junglewise.ai/threats/cve-2026-27982-django-allauth-open-redirect-in-saml-idp-initiated-sso  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-05. Updated: 2026-06-05  
License: CC BY 4.0 with a link back

CVE-2026-27982 · Severity: medium · CVSS 4.3 · Published 2026-03-05

django-allauth, a popular authentication package for Django web applications, contains a security flaw in its SAML login feature. If the SAML identity provider (IdP) initiated login is enabled, an attacker can trick users into visiting a malicious website by using a specially crafted link. This could be used in phishing campaigns to steal user credentials or distribute malware by making a malicious site appear to be part of a trusted application.

Technologies: [Pennersr Allauth](https://junglewise.ai/threats/technologies/allauth), [django-allauth (PyPI)](https://junglewise.ai/threats/technologies/django-allauth). Vendors: [Pennersr](https://junglewise.ai/threats/vendors/pennersr), [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2026-27982 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27982 being exploited in the wild.

**How severe is CVE-2026-27982?** Medium severity, with a CVSS score of 4.3, published 5 March 2026.

**Which products and versions are affected?** Pennersr Allauth < 65.14.1; django-allauth (PyPI) < 65.14.1, ECOSYSTEM:introduced=0,fixed=65.14.1.

**Is there a fix for CVE-2026-27982?** Yes. django-allauth (PyPI): upgrade to 65.14.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-27982 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-27982?** Check whether you run Pennersr Allauth or django-allauth (PyPI) 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

- django-allauth (PyPI): upgrade to 65.14.1 or later

  ```sh
  pip install "django-allauth>=65.14.1"
  ```


## Technical details

An open redirect vulnerability (CWE-601) exists in django-allauth when SAML IdP-initiated Single Sign-On (SSO) is enabled. The vulnerability stems from the application's failure to validate the 'RelayState' parameter in SAML requests, which is used to determine the destination URL after a successful login. A remote, unauthenticated attacker can craft a URL containing a malicious external site in the RelayState parameter; if a user clicks this link and authenticates, they will be redirected to the attacker-controlled domain. This issue is patched in version 65.14.1. Note that SAML IdP-initiated SSO is disabled by default in standard configurations.

## Affected products

- allauth django-allauth < 65.14.1

## Identifiers

- CVE-2026-27982
- GHSA-2jpr-83rg-v67j
- PYSEC-2026-56

## Timeline

- 2026-02-07: patched: Version 65.14.1 released
- 2026-03-05: disclosed: Initial public disclosure and CVE assignment

## References

- [https://allauth.org/news/2026/02/django-allauth-65.14.1-released](https://allauth.org/news/2026/02/django-allauth-65.14.1-released)
- [https://jvn.jp/en/jp/JVN23669411](https://jvn.jp/en/jp/JVN23669411)
- [https://github.com/pypa/advisory-database/tree/main/vulns/django-allauth/PYSEC-2026-56.yaml](https://github.com/pypa/advisory-database/tree/main/vulns/django-allauth/PYSEC-2026-56.yaml)

## Related threats

- [django-allauth Improper Authentication in Okta and NetIQ providers](https://junglewise.ai/threats/cve-2025-65431-django-allauth-improper-authentication-in-okta-and-netiq)
- [django-allauth insufficient session expiration for inactive users](https://junglewise.ai/threats/cve-2025-65430-django-allauth-insufficient-session-expiration-for-inactive-users)