Skip to content
OpenAdvisories

Product · Discourse

discourse-activity-pub

1 known vulnerabilities.

discourse-activity-pub at a glance

Last 12 months
1
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 1 1 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 1 vulnerability November 2026: 0 vulnerabilities
Show as table
MonthVulnerabilitiesCritical
Nov 202600
Oct 202610
Sep 202600
Aug 202600
Jul 202600
Jun 202600
May 202600
Apr 202600
Mar 202600
Feb 202600
Jan 202600
Dec 202500
Nov 202500
Oct 202500
Sep 202500
Aug 202500
Jul 202500
Jun 202500
May 202500
Apr 202500
Mar 202500
Feb 202500
Jan 202500
Dec 202400
All Critical High Medium Low Exploited only Public exploit

1 result · Feed

  • High 8.6
    CVE-2026-55103

    Discourse ActivityPub: Fix inbound actor validation and apply outbound request SSRF hardening

    Discourse ActivityPub adds ActivityPub support to Discourse. Prior to commit 1c8518b0f2abdf31cbea3e0b242f74d8994a9ba5, inbound ActivityPub processing does not sufficiently verify that the actor authenticated by the signed request matches the Activity actor an…

    Discourse discourse-activity-pub