CVE-2026-33149 Tandoor Recipes Vulnerable to Host Header Injection
Attackers can poison invite links via Host header injection, stealing tokens to take over accounts or access data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-33149?
CVE-2026-33149 is a high-severity vulnerability in TandoorRecipes recipes, published on 26 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Versions up to and including 2.5.3 set ALLOWED_HOSTS = '*' by default, which causes Django to accept any value in the HTTP Host header without validation. The application uses request.build_absolute_uri() to generate absolute URLs in multiple contexts, including invite link emails, API pagination, and OpenAPI schema generation. An attacker who can send requests to the application with a crafted Host header can manipulate all server-generated absolute URLs. The most critical impact is invite link poisoning: when an admin creates an invite and the application sends the invite email, the link points to the attacker's server instead of the real application. When the victim clicks the link, the invite token is sent to the attacker, who can then use it at the real application. As of time of publication, it is unknown if a patched version is available.
Weakness: CWE-644
Which versions are affected by CVE-2026-33149?
It affects 1 product.
Products include Tandoor Recipes.
How do I fix CVE-2026-33149?
No fix has been published for CVE-2026-33149 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-33149 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33149 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in TandoorRecipes recipes
- CVE-2025-23211 Tandoor Recipes - SSTI - Remote Code Execution
- CVE-2026-33152 Tandoor Recipes Vulnerable to Unrestricted Brute-Force via BasicAuthentication
- CVE-2025-23213 Tandoor Recipes - Stored XSS through Unrestricted File Upload
- CVE-2026-35488 Tandoor Recipes — CustomIsShared permits DELETE/PUT on RecipeBook by shared (read-only) users
- CVE-2026-35045 Tandoor Recipes Affected by Private Recipe Exposure and Unauthorized Modification
Sources
Also known as GHSA-x636-4jx6-xc4w.