CVEvulnerability

CVE-2023-23621

7.5 HIGH Published 2023-01-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-01-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-1333

Description

Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches, a malicious user can cause a regular expression denial of service using a carefully crafted user agent. This issue is patched in version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches. There are no known workarounds.

Affected configurations

• discourse discourse (< 3.0.1) • discourse discourse 1.1.0 • discourse discourse 1.2.0 • discourse discourse 1.3.0 • discourse discourse 1.4.0 • discourse discourse 1.5.0 • discourse discourse 1.6.0 • discourse discourse 1.7.0 • discourse discourse 1.8.0 • discourse discourse 1.9.0 • discourse discourse 2.0.0 • discourse discourse 2.1.0 • discourse discourse 2.2.0 • discourse discourse 2.3.0 • discourse discourse 2.4.0 • discourse discourse 2.5.0 • discourse discourse 2.6.0 • discourse discourse 2.7.0 • discourse discourse 2.8.0 • discourse discourse 2.9.0 • discourse discourse 3.0.0 • discourse discourse 3.1.0

Related

Weakness · CWE (1)

  • CWE-1333 Inefficient Regular Expression Complexity weakness

References