CVE-2024-22091

Excessive resource consumption due to lack to request path size limits

3.1 LowFix available

Mattermost versions 8.1.x <= 8.1.10, 9.6.x <= 9.6.0, 9.5.x <= 9.5.2 and 8.1.x <= 8.1.11 fail to limit the size of a request path that includes user inputs which allows an attacker to cause excessive resource consumption, possibly leading to a DoS via sending large request paths

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

0.54%Up 0.5 points since Apr 27, 2024

What each source reports

CVE List Score used 3.1

Excessive resource consumption due to lack to request path size limits

Record: CVE-2024-22091
CVSS 3.1: 3.1 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-400
Updated: 2026-11-02

EUVDEUVD-2024-1261 3.1

Record: EUVD-2024-1261
CVSS 3.1: 3.1 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-03

GitHub AdvisoriesGHSA-p2wq-4ggp-45f3 3.1

Mattermost fails to limit the size of a request path

Record: GHSA-p2wq-4ggp-45f3
CVSS 3.1: 3.1 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-400, CWE-770
Updated: 2026-11-02

NVD 3.1

Record: CVE-2024-22091
CVSS 3.1: 3.1 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400, CWE-770
Updated: 2026-11-02

OSV 3.1

Excessive resource consumption due to lack to request path size limits

Record: CVE-2024-22091
CVSS 3.1: 3.1 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-400
Updated: 2026-11-02

OSVGHSA-p2wq-4ggp-45f3 3.1

Mattermost fails to limit the size of a request path

Record: GHSA-p2wq-4ggp-45f3
CVSS 3.1: 3.1 LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-400, CWE-770
Updated: 2026-11-02

OSVGO-2024-2796 No score

Mattermost fails to limit the size of a request path in github.com/mattermost/mattermost-server

Mattermost fails to limit the size of a request path in github.com/mattermost/mattermost-server

Record: GO-2024-2796
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`github.com/mattermost/mattermost-server` Go	8.1.0 to 8.1.11	8.1.12
`github.com/mattermost/mattermost-server` Go	9.5.0 to 9.5.2	9.5.3
`github.com/mattermost/mattermost-server` Go	9.6.0-rc1 to 9.6.0	9.6.1
`github.com/mattermost/mattermost-server` Go	8.1.0 up to 8.1.12	8.1.12
`github.com/mattermost/mattermost-server` Go	9.5.0 up to 9.5.3	9.5.3
`github.com/mattermost/mattermost-server` Go	9.6.0-rc1 up to 9.6.1	9.6.1
`github.com/mattermost/mattermost-server` Go	8.1.0+incompatible up to 8.1.12+incompatible, 9.5.0+incompatible up to 9.5.3+incompatible, 9.6.0-rc1+incompatible up to 9.6.1+incompatible	8.1.12+incompatible9.5.3+incompatible9.6.1+incompatible

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-22091 is a low vulnerability (CVSS 3.1) in Mattermost, published April 26, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. Fixed in github.com/mattermost/mattermost-server 8.1.12.