BIT-discourse-2026-33514: Discourse: Information Disclosure
Affects discourseSource GCVE Database
Not known to be exploited · fixed in 2026.4.1 : update discourse when convenient.
Data as of 26 Oct 2026, 06:26 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2026.4.1, 2026.3.1, 2026.1.4
Exploitation evidence
Disclosed: evidence found.
CVE published 25 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Upgrade discourse to 2026.4.1, 2026.3.1 or 2026.1.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Bitnamidiscoursepkg:bitnami/discourseOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Discourse to version 2026.1.4, 2026.3.1, 2026.4.1, or 2026.5.0 or later, where this vulnerability has been fixed. No other mitigation is indicated or required.
Description
Discourse versions prior to 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0 contain an information disclosure vulnerability in the form template API. Authenticated users on instances with the form templates feature enabled can access the names and structured content of form templates intended for unauthorized categories. The impact is limited to disclosure of site configuration metadata. This vulnerability has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0.