CVE-2025-46553 – @misskey-dev/summaly

Package

Manager: npm
Name: @misskey-dev/summaly
Vulnerable Version: >=3.0.1 <5.2.1

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:P

EPSS: 0.00091 pctl0.26584

Details

@misskey-dev/summaly Redirect Filter Bypass ### Summary 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. ### Details In the main `summaly` function, a new `scrapingOptions` object is created and passed to either the matched plugin, if any, or the default summarize function. The issue here is that the new `scrapingOptions` object is not provided the `allowRedirects` property of `opts`. ### PoC - Publish a post containing a link to any URL that redirects on Misskey. - A preview will be generated for the target of the redirect, despite Misskey passing `allowRedirects: false`. ### Impact Misskey will follow redirects, despite explicitly requesting not to.

Metadata

Created: 2025-05-05T17:03:20Z
Modified: 2025-05-05T22:06:39Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-7899-w6c4-vqc4/GHSA-7899-w6c4-vqc4.json
CWE IDs: ["CWE-601", "CWE-665", "CWE-669", "CWE-693"]
Alternative ID: GHSA-7899-w6c4-vqc4
Finding: F156
Auto approve: 1