CVE-2026-53960 — Discourse: Hidden first-post excerpt is emitted in Q&A schema JSON-LD

CVE-2026-53960

Discourse: Hidden first-post excerpt is emitted in Q&A schema JSON-LD PUBLISHED

Description (CNA)

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, hidden or otherwise unviewable first-post content was leaked as an excerpt in the publicly-served Q&A (QAPage) JSON-LD structured data, exposing it to any unauthenticated visitor and to search-engine crawlers. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

Affected (CNA)

Vendor / product	Versions
discourse / discourse	affected < 2026.1.6; affected >= 2026.5.0-latest, < 2026.5.2; affected >= 2026.6.0-latest, < 2026.6.1

CWE

CWE-862

References

https://github.com/discourse/discourse/security/advisories/GHSA-j5j7-w5g3-43q8

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.