CVE-2025-27936

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Source
https://cve.org/CVERecord?id=CVE-2025-27936
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27936.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-27936
Aliases
Downstream
Related
Published
2025-04-16T10:15:14.797Z
Modified
2026-04-10T05:24:20.489937Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.

References

Affected packages

Git / github.com/mattermost/mattermost-server

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
09ccf277a61f68bdbf2453c987af463ed29d6376
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f189bc2073cf800c5f4506a69bdb51d7065269bf
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "10.5.2"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.0"
        }
    ]
}

Affected versions

@mattermost/client@10.*
@mattermost/client@10.5.0
@mattermost/types@10.*
@mattermost/types@10.5.0
Other
cloud-2022-07-20-1
cloud-2022-08-10-1
cloud-2022-09-08-1
cloud-2022-10-06-1
cloud-2022-11-11-1
cloud-2022-11-24-1
server/public/v0.*
server/public/v0.0.10
server/public/v0.0.11
server/public/v0.0.12
server/public/v0.0.13
server/public/v0.0.14
server/public/v0.0.15
server/public/v0.0.16
server/public/v0.0.17
server/public/v0.0.18
server/public/v0.0.5
server/public/v0.0.6
server/public/v0.0.7
server/public/v0.0.8
server/public/v0.0.9
server/public/v0.1.0
server/public/v0.1.1
server/public/v0.1.2
server/public/v0.1.3
server/public/v0.1.4
server/public/v0.1.5
server/public/v0.1.6
server/public/v0.1.7
server/public/v0.1.8
server/public/v0.1.9
v0.*
v0.5.0
v10.*
v10.5.0
v10.5.0-rc1
v10.5.0-rc2
v10.5.0-rc3
v10.5.0-rc4
v10.5.0-rc5
v10.5.0-rc6
v10.5.1
v10.5.1-rc1
v10.5.1-rc2
v4.*
v4.10.0-rc1
v4.2.0-rc1
v4.3.0-rc1
v4.4.0-rc1
v4.5.0-rc1
v4.6.0-rc1
v4.6.0-rc2
v4.7.0-rc1
v4.8.0-rc1
v4.9.0-rc1
v5.*
v5.0.0-rc1
v5.1.0-rc1
v5.2.0-rc1
v5.2.0-rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27936.json"