CVE-2025-31363
published 2025-04-16CVE-2025-31363: Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an…
PriorityP340medium6.5CVSS 3.1
AVNACLPRLUINSUCHINAN
EPSS
0.27%
18.1th percentile
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | mattermost_mattermost-server | >= 10.4.0+incompatible < 10.4.3+incompatible | 10.4.3+incompatible |
| github.com | mattermost_mattermost-server | >= 10.5.0+incompatible < 10.5.1+incompatible | 10.5.1+incompatible |
| github.com | mattermost_mattermost-server | >= 9.11.0+incompatible < 9.11.10+incompatible | 9.11.10+incompatible |
| github.com | mattermost_mattermost_server_v8 | >= 0 < 8.0.0-20250218121836-2b5275d87136 | 8.0.0-20250218121836-2b5275d87136 |
| github.com | mattermost_mattermost_server_v8 | >= 10.4.0 < 10.4.3 | 10.4.3 |
| github.com | mattermost_mattermost_server_v8 | >= 10.5.0 < 10.5.1 | 10.5.1 |
| github.com | mattermost_mattermost_server_v8 | >= 9.11.0 < 9.11.10 | 9.11.10 |
| mattermost | mattermost | — | — |
| mattermost | mattermost | 10.4.0 – 10.4.2 | — |
| mattermost | mattermost | 9.11.0 – 9.11.9 | — |
| mattermost | mattermost_server | — | — |
| mattermost | mattermost_server | >= 10.4.0 < 10.4.3 | 10.4.3 |
| mattermost | mattermost_server | >= 9.11.0 < 9.11.10 | 9.11.10 |
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OSV
Mattermost doesn't restrict domains LLM can request to contact upstream in github.com/mattermost/mattermost-server
osv·2025-04-22
CVE-2025-31363 Mattermost doesn't restrict domains LLM can request to contact upstream in github.com/mattermost/mattermost-server
Mattermost doesn't restrict domains LLM can request to contact upstream in github.com/mattermost/mattermost-server
Mattermost doesn't restrict domains LLM can request to contact upstream in github.com/mattermost/mattermost-server
OSV
Mattermost doesn't restrict domains LLM can request to contact upstream
osv·2025-04-16
CVE-2025-31363 [LOW] Mattermost doesn't restrict domains LLM can request to contact upstream
Mattermost doesn't restrict domains LLM can request to contact upstream
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
GHSA
Mattermost doesn't restrict domains LLM can request to contact upstream
ghsa·2025-04-16
CVE-2025-31363 [LOW] CWE-201 Mattermost doesn't restrict domains LLM can request to contact upstream
Mattermost doesn't restrict domains LLM can request to contact upstream
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-04-16
Published