CVE-2026-49256
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.
- Affected products
- Discourse
- Discourse
- < 2026.1.5, 2026.4.2, 2026.5.1, 2026.6.0
- Fix
- Available
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 0.4% (30th percentile)
- Weakness
- CWE-200
- NVD status
- Analyzed
- Published
- 2026-07-09
CVE-2026-49256 at NVD
No indexed exploits for CVE-2026-49256 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-49256 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.