CVE-2026-33510 DOM-Based XSS in Homarr /auth/login Redirect
An attacker can execute arbitrary JavaScript in an authenticated user's browser via a malicious link, potentially stealing credentials or performing unauthorized actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-33510?
CVE-2026-33510 is a high-severity cross-site scripting vulnerability in homarr-labs homarr, published on 6 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Homarr is an open-source dashboard. Prior to 1.57.0, a DOM-based Cross-Site Scripting (XSS) vulnerability has been discovered in Homarr's /auth/login page. The application improperly trusts a URL parameter (callbackUrl), which is passed to redirect and router.push. An attacker can craft a malicious link that, when opened by an authenticated user, 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. This vulnerability is fixed in 1.57.0.
Which versions are affected by CVE-2026-33510?
It affects 1 product.
Products include Homarr Homarr.
How do I fix CVE-2026-33510?
No fix has been published for CVE-2026-33510 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-33510 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33510 exists.
Other vulnerabilities in homarr-labs homarr
- CVE-2025-64759 Homarr is Vulnerable to Stored Cross-Site Scripting (XSS) and Possible Privilege Escalation via Malicious SVG Upload
- CVE-2025-67493 Homarr: missing input sanitization and possible privilege escalation through ldap search query injection
- CVE-2026-27796 Homarr: Unauthenticated Information Disclosure (Integration Metadata Leak)
- CVE-2026-27797 Homarr: Unauthenticated SSRF in rssFeed.ts
- CVE-2026-25123 Homarr affected by Unauthenticated SSRF / Port-Scan Primitive via widget.app.ping
Sources
Also known as GHSA-79pg-554g-rw82.