CVE-2023-49809 json
Todo plugin gets crashed and disabled by member
published 2023-12-12 2 y ago modified 2026-06-17 4 mo ago also BIT-mattermost-2023-49809 , EUVD-2023-53718
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.
Patch / fix
- bitnami mattermost 8.1.6, 9.1.1
- Mattermost Mattermost 8.1.6, 9.2.0
Exploit prediction
0.64% chance of exploitation in the next 30 days, higher than 51% 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 |
| 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 |
|---|---|---|---|
| bitnami | mattermost | <8.1.6 >=9.0.0, <9.1.1 |
8.1.6 9.1.1 |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
mattermost.com
/security-updates
issue-tracking, vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-49809
web
Sources
- CVE List CVE-2023-49809
- NVD CVE-2023-49809
- OSV BIT-mattermost-2023-49809
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