Detections
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SCA: security update for github.com/mattermost/mattermost-server (GHSA-hw87-6jcq-9f8q)

medium Tenable Self-Hosted Container Security Plugin ID 442459

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to enforce the PostEditTimeLimit on non-
 message post fields which allows an authenticated user to modify post file attachments, props, and pin
 status after the edit window has expired via the post patch and update API endpoints.. Mattermost Advisory
 ID: MMSA-2026-00631 (CVE-2026-4053)

Solution

Update the github.com/mattermost/mattermost-server library and its related packages to version 0.0.0-20260414103857-b21ef302025e or later.

See Also

https://github.com/advisories/GHSA-hw87-6jcq-9f8q

Plugin Details

Severity: Medium

ID: 442459

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 5/29/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS Score Source: CVE-2026-4053

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/15/2026

Vulnerability Publication Date: 5/15/2026

Reference Information

CVE: CVE-2026-4053

cwe: CWE-672