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CVE-2024-39832

Permanently local data deletion by malicious remote

HIGH
8.7
CVSS Score
Published: August 1, 2024 at 02:05 PM UTC
Updated: June 17, 2026 at 07:42 AM UTC
1 product affected across 1 vendorMattermost

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Severity
HIGH8.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to properly safeguard an error handling which allows a malicious remote to permanently delete local data by abusing dangerous error handling, when share channels were enabled.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mattermost· Mattermost
95%
9.5.0 ≤ v ≤ 9.5.69.5.0 ≤ v < 9.5.79.7.0 ≤ v ≤ 9.7.59.7.0 ≤ v < 9.7.69.8.0 ≤ v ≤ 9.8.19.8.0 ≤ v < 9.8.29.5.09.7.09.8.09.9.0
Vendor states this is fixed in 9.10.0 (unaffected)
Vendor states this is fixed in 9.5.7 (unaffected)
Vendor states this is fixed in 9.7.6 (unaffected)
Vendor states this is fixed in 9.8.2 (unaffected)
Vendor states this is fixed in 9.9.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://mattermost.com/security-updates

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-754

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