CVE-2023-40588

MEDIUM

Discourse < 3.1.1 - Denial of Service via 2FA/Security Key Name

Title source: llm
STIX 2.1

Description

Discourse is an open-source discussion platform. Prior to version 3.1.1 of the `stable` branch and version 3.2.0.beta1 of the `beta` and `tests-passed` branches, a malicious user could add a 2FA or security key with a carefully crafted name to their account and cause a denial of service for other users. The issue is patched in version 3.1.1 of the `stable` branch and version 3.2.0.beta1 of the `beta` and `tests-passed` branches. There are no known workarounds.

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0009
EPSS Percentile 25.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (5)
discourse/discourse 1.1.0 beta1 (9 CPE variants)
discourse/discourse 1.2.0 beta1 (9 CPE variants)
discourse/discourse 1.3.0 beta1 (11 CPE variants)
discourse/discourse 1.4.0 beta1 (12 CPE variants)
discourse/discourse 1.5.0 beta1 (9 CPE variants)
Published Sep 15, 2023
Tracked Since Feb 18, 2026