CVE-2024-1887 json
Public channel post content accessible without membership when compliance export is enabled
published 2024-02-29 2 y ago modified 2026-09-10 1 mo ago also GHSA-fx48-xv6q-6gp3 , GO-2024-2591 , EUVD-2024-0634
- cvss
- 4.3
- 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 26%
- public exploits
- 0
- none known
Summary
Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 8.1.9, 9.2.5, 9.3.1
- 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
0.33% chance of exploitation in the next 30 days, higher than 26% 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:L/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
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 <8.1.9 all versions |
9.3.1 9.2.5 8.1.9 |
| 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-284 Improper Access Control
References
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-1887
advisory
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-fx48-xv6q-6gp3
advisory
Sources
- CVE List CVE-2024-1887
- GitHub Advisory GHSA-fx48-xv6q-6gp3
- NVD CVE-2024-1887
- OSV GO-2024-2591
Fencer Vulns 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.