CVE-2024-47401Network attack vector

Authenticated server crash via amplified GraphQL errors

Published Oct 29, 2024 · Updated Oct 29, 2024

Resource exhaustion in affected Mattermost releases allows remote authenticated users to crash the server through Playbooks GraphQL requests. Playbooks returns detailed errors without an effective response-size bound, so a crafted request amplifies the GraphQL response until the application exhausts resources. Exploitation requires a low-privileged account and interrupts availability without reported data disclosure or modification.

CVSS severity4.3
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in affected Mattermost releases allows remote authenticated users to crash the server through Playbooks GraphQL requests. Playbooks returns detailed errors without an effective response-size bound, so a crafted request amplifies the GraphQL response until the application exhausts resources. Exploitation requires a low-privileged account and interrupts availability without reported data disclosure or modification.

The record

CVE
CVE-2024-47401
Published
Oct 29, 2024
Updated
Oct 29, 2024
Vendor
Mattermost
Product
Mattermost
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.10.0 <=9.10.2
  2. Affected versionversion=9.11.0 <=9.11.1
  3. Affected versionversion=9.5.0 <=9.5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Mattermost · Mattermostversion=9.10.0 <=9.10.2; version=9.11.0 <=9.11.1; version=9.5.0 <=9.5.9

Published CVSS scores

4.3Mattermost, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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