Vulnerability · Published May 5, 2025 · Assigned by GitHub_M

CVE-2025-46553@misskey-dev/summaly Redirect Filter Bypass

Low 2.1

In plain English

A low-severity open redirect in summaly from misskey-dev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.1Low
Exploit odds (30 days)0.3%top 81.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@misskey-dev/summaly5.2.1GHSA-7899-w6c4-vqc4

Affected products (as reported)

VendorProductVersions
misskey-dev summaly >= 3.0.1, < 5.2.1

Weakness: CWE-693, CWE-601, CWE-665, CWE-669 · Vector: 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

References