CVE-2023-5876

Regex DoS from a malicious server enrolled in Desktop

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Published Nov 2, 2023 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed

Description

Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mattermost

Mattermost Desktop

unaffected

Version	Status	Constraints
`0`	affected	≤ 5.5.0
`5.5.1`	unaffected	—

Configuration 1 [-]

cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Update Mattermost Desktop to versions v5.5.1 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-58149	Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.596% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://mattermost.com/security-updates

History

No history.

Subscriptions

Mattermost Mattermost Desktop

Weaknesses

Sources

CVE record Updated: Sep 5, 2024, 6:12 PM

Status: PUBLISHED
Assigner: Mattermost
Published: Nov 2, 2023, 8:26 AM
Updated: Sep 5, 2024, 6:12 PM
Reserved: Oct 31, 2023, 10:56 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 8:14 AM

Updated: Aug 2, 2024, 8:14 AM

NVD Updated: Jun 17, 2026, 6:49 AM

Status: Modified
Published: Nov 2, 2023, 9:15 AM
Modified: Jun 17, 2026, 6:49 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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