AUGUST 24, 2026
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Case File

CVE-2026-49256

HIGH · CVSS 7.5 EPSS 0.37% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

The vulnerability affects the Discourse open-source discussion platform, where restricted tag and tag-group names associated with publicly readable categories can be exposed to unauthorized users via category and group endpoints. This could lead to information leakage, potentially compromising user privacy and security. Organizations using affected versions should prioritize upgrading to the patched releases (2026.6.0, 2026.5.1, 2026.4.2, or 2026.1.5) to mitigate this risk.

Public Exploit Signal

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

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

CVE
CVE-2026-49256
Severity
HIGH
CVSS
7.5
EPSS
0.37%

Original NVD Description

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, restricted tag and tag-group names attached to publicly readable categories as allowed_tags, allowed_tag_groups, or required tag groups could leak to anonymous and unauthorized users through category and group endpoints. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Related CVEs

Other vulnerabilities affecting the same vendor(s)