A crafted SVG attachment can crash a Mattermost server
Published Jun 2, 2022
6.5
MEDIUMCVSS 3.1
EPSS 0.91%
Description
Uncontrolled resource consumption in Mattermost version 6.6.0 and earlier allows an authenticated attacker to crash the server via a crafted SVG attachment on a post.
Affected products
-
- Version 5.xStatusaffectedConstraints<=5.39
- Version 6.4.xStatusaffectedConstraints<=6.4.2
- Version 6.5.x 6.5.0StatusaffectedConstraints-
- Version 6.6.x 6.6.0StatusaffectedConstraints-
- Version 6.xStatusaffectedConstraints<=6.3.7
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mattermost | Mattermost | n/a |
|
- ≥ 5.0.0 · < 6.3.8
- ≥ 6.4.0 · < 6.4.3
- 6.5.0
- 6.6.0
No data.
No Red Hat product state for this CVE.
github.com/mattermost/mattermost-server
Go
Introduced 6.4.0 Fixed 6.4.3github.com/mattermost/mattermost-server
Go
Introduced 5.0.0 Fixed 6.3.8github.com/mattermost/mattermost-server
Go
Introduced 6.6.0 Fixed 6.6.1github.com/mattermost/mattermost-server
Go
Introduced 6.5.0 Fixed 6.5.1
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 6.4.0 | 6.4.3 |
| Go | github.com/mattermost/mattermost-server | 5.0.0 | 6.3.8 |
| Go | github.com/mattermost/mattermost-server | 6.6.0 | 6.6.1 |
| Go | github.com/mattermost/mattermost-server | 6.5.0 | 6.5.1 |
Remediation
Vendor solution
Configure the maximum file size for message attachments to 20 megabytes or less: https://docs.mattermost.com/configure/configuration-settings.html#maximum-file-size
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Dec 6, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.91% (0.00906) | 58.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.83% (0.00825) | 52.45th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.16% (0.00161) | 34.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00081) | 36.65th | v3 (v2023.03.01) |
| Dec 24, 2023 | 0.08% (0.00081) | 34.08th | v3 (v2023.03.01) |
| Jun 9, 2023 | 0.08% (0.00076) | 30.89th | v3 (v2023.03.01) |
| May 8, 2023 | 0.04% (0.00044) | 11.09th | v3 (v2023.03.01) |
| May 3, 2023 | 0.05% (0.00053) | 18.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 11.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Dec 3, 2022 | 0.89% (0.00885) | 27.03th | v2 (v2022.01.01) |
| Jun 3, 2022 | 0.89% (0.00885) | 25.02th | v2 (v2022.01.01) |
References (4)
- https://github.com/advisories/GHSA-gwpf-95jc-63rv Advisory
- https://github.com/mattermost/mattermost-server/pull/19988
- https://mattermost.com/security-updates/ x_refsource_MISCVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-1982
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-gwpf-95jc-63rv | Advisory | |
| https://github.com/mattermost/mattermost-server/pull/19988 | ||
| https://mattermost.com/security-updates/ | x_refsource_MISCVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2022-1982 |
Change history (0)
No recorded changes yet.