CVE-2024-45843

Weak SSRF Filtering

MEDIUM

5.4

CVSS Score

Published: September 26, 2024 at 08:03 AM UTC

Updated: June 17, 2026 at 07:54 AM UTC

2 products affected across 1 vendorMattermost ServerMattermost

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Severity

MEDIUM5.4

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Mattermost versions 9.5.x <= 9.5.8 fail to include the metadata endpoints of Oracle Cloud and Alibaba in the SSRF denylist, which allows an attacker to possibly cause an SSRF if Mattermost was deployed in Oracle Cloud or Alibaba.

Affected

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

Mattermost Server · Mattermost

95%

9.5.0 ≤ v < 9.5.9

Affected range stops below 9.5.9, so it looks safe — our inference, not a vendor statement

Mattermost · Mattermost

60%

9.5.0 ≤ v ≤ 9.5.89.5.0

Vendor states this is fixed in 9.11.0 (unaffected)

Vendor states this is fixed in 9.5.9 (unaffected)

Remediation

No guide yet

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

Patch and advisory references

https://mattermost.com/security-updates

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

5.4MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-918

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