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CVE-2025-24808

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CVE-2025-24808

Published: Mar 26, 2025

Modified: Mar 26, 2025

PUBLISHED

CVSS v3.1

4.3

MEDIUM

Description

Discourse is an open-source discussion platform. Prior to versions `3.3.4` on the `stable` branch and `3.4.0.beta5` on the `beta` branch, someone who is about to reach the limit of users in a group DM may send requests to add new users in parallel. The requests might all go through ignoring the limit due to a race condition. The patch in versions `3.3.4` and `3.4.0.beta5` uses the `lock` step in service to wrap part of the `add_users_to_channel` service inside a distributed lock/mutex in order to avoid the race condition.

VendorProductVersions

discourse

discourse

affected
< 3.3.4
affected
>= 3.4.0.beta1, < 3.4.0.beta5

Weaknesses (CWE)

CWE-362

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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