AUGUST 4, 2026
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Case File

CVE-2021-41163

CRITICAL · CVSS 10 EPSS 19.81% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-20 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-41163
Severity
CRITICAL
CVSS
10
EPSS
19.81%

Original NVD Description

Discourse is an open source platform for community discussion. In affected versions maliciously crafted requests could lead to remote code execution. This resulted from a lack of validation in subscribe_url values. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. To workaround the issue without updating, requests with a path starting /webhooks/aws path could be blocked at an upstream proxy.