CVE-2025-46553: summaly Open Redirect — Fix

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.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-601 CWE-601

CWE-665 CWE-665

CWE-669 CWE-669

CWE-693 CWE-693

Affected Products

Vendor	Product	Versions
misskey	summaly	3.0.1 — 5.2.1

References

Advisories & Patches

https://github.com/misskey-dev/summaly/commit/45153b4f08a772c395a13f7a25399dd87ed022ed https://github.com/misskey-dev/summaly/security/advisories/GHSA-7899-w6c4-vqc4

Frequently Asked Questions

What is CVE-2025-46553? +

@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. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-46553? +

CVE-2025-46553 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-46553? +

CVE-2025-46553 affects products from misskey, specifically: summaly. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-46553? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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