A crafted SVG attachment can crash a Mattermost server

Also known as GHSA-gwpf-95jc-63rv

Published 4 y ago 2022-06-02 · modified 4 mo ago 2026-06-17 · JSON

CVSS

4.3

v3.1 · CNA

CISA KEV

not known exploited

EPSS

0.9%

percentile 61%

Public exploits

none known

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.

CISA SSVC assessment

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 23 mo ago 2024-12-06

Exploit prediction (EPSS)

0.94% probability of exploitation in the next 30 days, higher than 61% of all scored CVEs.

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`
CNA	3.1	4.3	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`
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`
GitHub	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`	>=6.6.0, <6.6.1 >=6.5.0, <6.5.1 >=6.4.0, <6.4.3 >=5.0.0, <6.3.8	6.6.1 6.5.1 6.4.3 6.3.8

Affected products

Mattermost Mattermost

Classification

Weakness

CWE-400 Uncontrolled Resource Consumption

References

mattermost.com /security-updates/ · x_refsource_MISC, x_transferred
nvd.nist.gov /vuln/detail/CVE-2022-1982 · advisory
github.com /mattermost/mattermost-server/pull/19988 · web
github.com /mattermost/mattermost-server · package
mattermost.com /security-updates · web

Sources

CVE List: CVE-2022-1982
GitHub Advisory: GHSA-gwpf-95jc-63rv
NVD: CVE-2022-1982

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary