CVE-2026-72731 json
Discourse: Strip SQL comments and use non-recursive parameter interpolation in Data Explorer
published 2026-08-10 2 mo ago modified 2026-09-08 2 mo ago also BIT-discourse-2026-72731 , EUVD-2026-55671 , GHSA-wm63-83xp-59r5
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
Discourse is an open-source discussion platform. From 2026.1.0-latest until 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1, anyone able to run a parameterized Data Explorer query, including non-staff members of a group a query is shared with, could craft parameter values that escaped the intended query and executed arbitrary SQL through plugins/discourse-data-explorer/lib/discourse_data_explorer/data_explorer.rb and plugins/discourse-data-explorer/lib/discourse_data_explorer/workflows/sql_action/v1.rb. Recursive parameter interpolation allowed one parameter value to introduce another parameter, and parameter declarations in SQL comments could be used to inject a statement. Queries run in a read-only transaction, so data could not be modified, but any table could be read. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1.
Patch / fix
- bitnami discourse 2026.1.7, 2026.6.2, 2026.7.1
- discourse discourse 2026.1.7, 2026.6.2, 2026.7.1, 2026.8.0-latest.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| OSV | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | discourse | <2026.1.7 >=2026.6.0, <2026.6.2 >=2026.7.0, <2026.7.1 |
2026.1.7 2026.6.2 2026.7.1 |
Affected products
- discourse discourse
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
References
-
github.com
/discourse/discourse/commit/2bdab888cef561348470dee204a4879d83fbb5c3
web
-
github.com
/discourse/discourse/commit/3dc7f0da7aa18548281152e285244efb1cc8ad0d
web
-
github.com
/discourse/discourse/commit/674ba6fc64184fd7d8e21183c5d8cb22367faa6e
web
-
github.com
/discourse/discourse/commit/ce9ccf24ec3538172dc8f8199728e08f63e57693
web
-
github.com
/discourse/discourse/security/advisories/GHSA-wm63-83xp-59r5
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-72731
web
Sources
- CVE List CVE-2026-72731
- NVD CVE-2026-72731
- OSV BIT-discourse-2026-72731
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.