CVE-2023-37904
Discourse Race Condition in Accept Invite
Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches. As a workaround, use restrict to email address invites.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Discourse Race Condition in Accept Invite
Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches. As a workaround, use restrict to email address invites.
- Record
CVE-2023-37904- CVSS 3.1
- 2.6 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-362
- Updated
- 2026-11-02
EUVDEUVD-2023-41770
Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches. As a workaround, use restrict to email address invites.
- Record
EUVD-2023-41770- CVSS 3.1
- 2.6 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
NVD
Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches. As a workaround, use restrict to email address invites.
- Record
CVE-2023-37904- CVSS 3.1
- 2.6 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N - CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-362
- Updated
- 2026-11-02
OSV
Discourse Race Condition in Accept Invite
Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches. As a workaround, use restrict to email address invites.
- Record
CVE-2023-37904- CVSS 3.1
- 2.6 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVBIT-discourse-2023-37904 No score
Discourse Race Condition in Accept Invite
Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches. As a workaround, use restrict to email address invites.
- Record
BIT-discourse-2023-37904- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
discourseBitnami |
before 3.0.6 | 3.0.6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-37904 is a low vulnerability (CVSS 2.6) in Discourse, published July 28, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in discourse 3.0.6.