CVE-2025-46553 @misskey-dev/summaly Redirect Filter Bypass
Attackers can bypass redirect restrictions in the summaly library, potentially enabling Server-Side Request Forgery or unauthorized access to internal resources.
- 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
- Available
What is CVE-2025-46553?
CVE-2025-46553 is a low-severity server-side request forgery vulnerability in misskey-dev summaly, published on 5 May 2025. 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
@misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main `summaly` function causes the `allowRedirects` option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects, despite explicitly requesting not to. Version 5.2.1 contains a patch for the issue.
Which versions are affected by CVE-2025-46553?
2 open source packages ship an affected version, including @misskey-dev/summaly. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@misskey-dev/summaly npm | From 3.0.1 | 5.2.1 |
@misskey-dev/summaly npm | From 3.0.1 | 5.2.1 |
Products include Misskey Summaly.
How do I fix CVE-2025-46553?
Upgrade @misskey-dev/summaly to 5.2.1 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-46553 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-46553 exists.
Sources
Also known as GHSA-7899-w6c4-vqc4.