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Know what to patch next.

Published open-source security advisories, matched to the exact versions you run.

Run in a terminal

claude mcp add --scope user --transport http patchnext https://mcp.patchnext.com && claude mcp login patchnext

Your browser opens: sign in and choose what the agent may read.

Then ask: What do I need to patch on this machine?

At a glance

New
411 Actionable advisories published in the last 30 days (UTC), within the selected severities, against 566 in the 30 days before.
Critical
67 Actionable advisories published in the last 30 days (UTC) and rated CVSS 9.0 or higher, within the selected severities.
Exploited
119 All actionable advisories, of any publish date, that CISA's Known Exploited Vulnerabilities catalog confirms are exploited in the wild, within the selected severities. Show them in the feed.

Activity · last 26 weeks

1,087 actionable advisories published since 8 Sep 2026; busiest day 7 Oct 2026 with 73. Every covered package ecosystem, by publish date (UTC). To list one day, use Published on in the feed filters.

Advisories per daypartial: Before 8 Sep 2026 coverage is partial (hatched days).

Actionable

6951–6975 of 14,180 Critical + High advisories · newest first

Show all severities
Exploited (CISA KEV) only
  1. High, CVSS 8.7

    Apache Tomcat - Denial of Service

    Maven org.apache.tomcat:tomcat-coyote +1 · Upgrade all 2 to 11.0.0-M21 (pre-release), 10.1.25 or 9.0.90 by release line; some affected versions have no fix yet · >= 11.0.0-M1, < 11.0.0-M21; >= 10.1.0-M1, < 10.1.25; >= 9.0.0-M1, < 9.0.90; >= 8.5.0, <= 8.5.100

  6. Critical, CVSS 9.3Exploited · CISA KEV

    Remote Code Execution (RCE) vulnerability in geoserver

    Maven org.geoserver:gs-wfs +2 · Upgrade all 3 to 2.25.2, 2.24.4, 2.23.6 or 2.22.6 by release line · >= 2.24.0, < 2.24.4; >= 2.25.0, < 2.25.2; >= 2.23.0, < 2.23.6; < 2.22.6

  20. High, CVSS 7.7

    Path traversal in saltstack

    PyPI salt · Upgrade to 3006.6 or 3005.5 by release line · < 3005.5; >= 3006.0, < 3006.6

A vendor fix does not resolve your finding until you verify it in your own systems.

News

Security reports that are not matched to your stack.

CISA security events · all vendors

Advisory watch · no fix evidence

Browse all news