CVE-2026-33506: DOM-Based XSS in Ory Polis Login Page

Vulnerability summary

CVE-2026-33506 is a high (CVSS 8.8) vulnerability in ory polis. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 41% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 26-03-2026
   PublishedVulnerability first disclosed.
2. 26-03-2026
   Last modifiedVulnerability information updated.

Description

Ory Polis, formerly known as BoxyHQ Jackson, bridges or proxies a SAML login flow to OAuth 2.0 or OpenID Connect. Versions prior to 26.2.0 contain a DOM-based Cross-Site Scripting (XSS) vulnerability in Ory Polis's login functionality. The application improperly trusts a URL parameter (`callbackUrl`), which is passed to `router.push`. An attacker can craft a malicious link that, when opened by an authenticated user (or an unauthenticated user that later logs in), performs a client-side redirect and executes arbitrary JavaScript in the context of their browser. This could lead to credential theft, internal network pivoting, and unauthorized actions performed on behalf of the victim. Version 26.2.0 contains a patch for the issue.

• CWE-87Improper Neutralization of Alternate XSS SyntaxThe product does not neutralize or incorrectly neutralizes user-controlled input for alternate script syntax.
• CWE-601URL Redirection to Untrusted SiteThe web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.