CVE-2024-42000 json
Unauthorized Access to view channels' details
published 2y ago modified 4mo ago also BIT-mattermost-2024-42000 , EUVD-2024-39386
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
Mattermost versions 9.10.x <= 9.10.2, 9.11.x <= 9.11.1, 9.5.x <= 9.5.9 and 10.0.x <= 10.0.0 fail to properly authorize the requests to /api/v4/channels which allows a User or System Manager, with "Read Groups" permission but with no access for channels to retrieve details about private channels that they were not a member of by sending a request to /api/v4/channels.
Patch / fix
- bitnami mattermost 9.5.10, 9.10.3, 9.11.2
- Mattermost Mattermost 9.5.10, 9.10.3, 9.11.2, 10.0.1, 10.1.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mattermost | >=9.5.0, <9.5.10 >=9.10.0, <9.10.3 >=9.11.0, <9.11.2 >=10.0.0-rc1, <=10.0.0-rc1 >=10.0.0-rc2, <=10.0.0-rc2 >=10.0.0-rc3, <=10.0.0-rc3 >=10.0.0-rc4, <=10.0.0-rc4 >=10.0.0, <=10.0.0 |
9.5.10 9.10.3 9.11.2 |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
mattermost.com
/security-updates
vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2024-42000
web
Sources
- CVE List CVE-2024-42000
- NVD CVE-2024-42000
- OSV BIT-mattermost-2024-42000
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.