CVE-2022-1337 json
OOM DoS in Mattermost image proxy
published 2022-04-13 4 y ago modified 2026-06-17 4 mo ago also BIT-mattermost-2022-1337 , EUVD-2022-1715 , GHSA-f37q-q7p2-ccfc , GO-2022-0595
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
The image proxy component in Mattermost version 6.4.1 and earlier allocates memory for multiple copies of a proxied image, which allows an authenticated attacker to crash the server via links to very large image files.
Patch / fix
- go github.com/mattermost/mattermost-server/v6 6.4.2
- bitnami mattermost 5.37.9, 6.2.5, 6.3.5, 6.4.2
- Mattermost Mattermost 5.37.9, 6.2.5, 6.3.5, 6.4.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% 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 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| 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/v6 | <6.4.2 |
6.4.2 |
| bitnami | mattermost | >=5.37.0, <5.37.9 >=6.2.0, <6.2.5 >=6.3.0, <6.3.5 >=6.4.0, <6.4.2 |
5.37.9 6.2.5 6.3.5 6.4.2 |
| go | github.com/mattermost/mattermost-server | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
References
-
mattermost.com
/security-updates/
vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2022-1337
advisory, web
-
github.com
/mattermost/mattermost-server
package
-
mattermost.com
/security-updates
web
-
github.com
/advisories/GHSA-f37q-q7p2-ccfc
advisory
Sources
- CVE List CVE-2022-1337
- GitHub Advisory GHSA-f37q-q7p2-ccfc
- NVD CVE-2022-1337
- OSV BIT-mattermost-2022-1337
- OSV GO-2022-0595
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.