CVE-2024-24988 json
Excessive resource consumption when sending long emoji names in user custom status
published 2024-02-29 2 y ago modified 2026-08-07 3 mo ago also BIT-mattermost-2024-24988 , EUVD-2024-0537 , GHSA-6mx3-9qfh-77gj , GO-2024-2589
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 9.2.5, 9.3.1
- bitnami mattermost 8.1.8, 9.1.5, 9.2.4
- go github.com/mattermost/mattermost-server 9.2.5+incompatible, 9.3.1+incompatible
- Mattermost Mattermost 8.1.9, 9.2.5, 9.3.1, 9.4.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >=9.3.0, <9.3.1 >=9.2.0, <9.2.5 all versions |
9.3.1 9.2.5 |
| bitnami | mattermost | <8.1.8 >=9.0.0, <9.1.5 >=9.2.0, <9.2.4 |
8.1.8 9.1.5 9.2.4 |
| go | github.com/mattermost/mattermost-server | >=9.2.0+incompatible, <9.2.5+incompatible >=9.3.0+incompatible, <9.3.1+incompatible |
9.2.5+incompatible 9.3.1+incompatible |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v6 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-24988
advisory, web
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-6mx3-9qfh-77gj
advisory
Sources
- CVE List CVE-2024-24988
- GitHub Advisory GHSA-6mx3-9qfh-77gj
- NVD CVE-2024-24988
- OSV BIT-mattermost-2024-24988
- OSV GO-2024-2589
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