How severe is CVE-2024-39810?

CVE-2024-39810 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-39810 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-39810?

CVE-2024-39810 affects Mattermost. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-39810?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-39810 have an EU (EUVD) identifier?

Yes. CVE-2024-39810 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38242.

When was CVE-2024-39810 published?

CVE-2024-39810 was published on 2024-08-22 and last updated on 2026-06-17.

CVE-2024-39810

CVE-2024-39810 is a medium-severity vulnerability in Mattermost with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-38242
Weakness: CWE-400
Affected product: Mattermost
Published: 2024-08-22
Last modified: 2026-06-17

Description

Mattermost versions 9.5.x <= 9.5.7 and 9.10.x <= 9.10.0 fail to time limit and size limit the CA path file in the ElasticSearch configuration which allows a System Role with access to the Elasticsearch system console to add any file as a CA path field, such as /dev/zero and, after testing the connection, cause the application to crash.

Frequently asked questions

What is CVE-2024-39810?: Mattermost versions 9.5.x <= 9.5.7 and 9.10.x <= 9.10.0 fail to time limit and size limit the CA path file in the ElasticSearch configuration which allows a System Role with access to the Elasticsearch system console to add any file as a CA path field, such as /dev/zero and, after testing the connection, cause the application to crash.
How severe is CVE-2024-39810?: CVE-2024-39810 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-39810 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-39810?: CVE-2024-39810 affects Mattermost. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-39810?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-39810 have an EU (EUVD) identifier?: Yes. CVE-2024-39810 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38242.
When was CVE-2024-39810 published?: CVE-2024-39810 was published on 2024-08-22 and last updated on 2026-06-17.

References

https://mattermost.com/security-updates

Affected products (1)

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

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