Mattermost up to 9.5.12/9.11.4/10.0.2/10.1.2 race condition

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Mattermost up to 9.5.12/9.11.4/10.0.2/10.1.2. This affects an unknown part. The manipulation leads to race condition. This vulnerability is documented as CVE-2024-48872. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mattermost up to 9.5.12/9.11.4/10.0.2/10.1.2. It has been rated as problematic. This issue affects some unknown functionality. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality. The summary by CVE is:

Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, and 9.5.x <= 9.5.12 fail to prevent concurrently checking and updating the failed login attempts. which allows an attacker to bypass of "Max failed attempts" restriction and send a big number of login attempts before being blocked via simultaneously sending multiple login requests

The weakness was released by Roman Shchekin. The advisory is shared at mattermost.com. The identification of this vulnerability is CVE-2024-48872 since 12/11/2024. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 213276 (Mattermost Server 9.5.x < 9.5.13, 9.11.x < 9.11.5, 10.0.x < 10.0.3, 10.1.x < 10.1.3, 10.2.0 (MMSA-2024-00388, MMSA-2024-00392)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.5.13, 9.11.5, 10.0.3, 10.1.3 or 10.2.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (213276). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3
• 9.5.4
• 9.5.5
• 9.5.6
• 9.5.7
• 9.5.8
• 9.5.9
• 9.5.10
• 9.5.11
• 9.5.12
• 9.11.0
• 9.11.1
• 9.11.2
• 9.11.3
• 9.11.4
• 10.0.0
• 10.0.1
• 10.0.2
• 10.1.0
• 10.1.1
• 10.1.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.8
CNA Vector (Mattermost): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 213276
Nessus Name: Mattermost Server 9.5.x < 9.5.13, 9.11.x < 9.11.5, 10.0.x < 10.0.3, 10.1.x < 10.1.3, 10.2.0 (MMSA-2024-00388, MMSA-2024-00392)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 9.5.13/9.11.5/10.0.3/10.1.3/10.2.0

Timelineinfo

12/11/2024 🔍
12/16/2024 +5 days 🔍
12/16/2024 +0 days 🔍
10/15/2025 +303 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Roman Shchekin
Status: Confirmed

CVE: CVE-2024-48872 (🔍)
GCVE (CVE): GCVE-0-2024-48872
GCVE (VulDB): GCVE-100-288521

Entryinfo

Created: 12/16/2024 09:26
Updated: 10/15/2025 16:59
Changes: 12/16/2024 09:26 (63), 12/20/2024 15:00 (2), 10/15/2025 16:59 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

Do you need the next level of professionalism?

Upgrade your account now!