CVE-2023-40703

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2023-40703
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-40703.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-40703
Aliases
Downstream
Published
2023-11-27T09:08:31.251Z
Modified
2026-07-17T21:16:00.205692139Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Denial of Service via specially crafted block fields in Mattermost Boards
Details

Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. 

Database specific 
{
    "cwe_ids": [
        "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40703.json",
    "cna_assigner": "Mattermost",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "last_affected": "7.8.12"
                },
                {
                    "last_affected": "8.1.3"
                },
                {
                    "last_affected": "9.0.1"
                },
                {
                    "last_affected": "9.1.0"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/mattermost/mattermost

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b69ff7d1038609a4a29a7db104679d21da10ad09
Introduced
90f502dc2dc80ee25cfb7d7bc3e743b53564a5a7
Last affected
4fe1024a51f22f239c19c33838dbdcf7589b7b94
Introduced
987e843629fe3f11861fda23ceb66884f5973ef1
Last affected
77f094c7ee8c7a00be01c2df72f948a62c690b66
Introduced
5934ff113becf755beb978cc7bd1ba6564cbbdd6
Last affected
5934ff113becf755beb978cc7bd1ba6564cbbdd6
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "7.8.12"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "last_affected": "8.1.3"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "last_affected": "9.0.1"
        },
        {
            "introduced": "9.1.0"
        },
        {
            "last_affected": "9.1.0"
        }
    ],
    "cpe": [
        "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:mattermost:mattermost:9.1.0:*:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ]
}

Affected versions

9.*
9.1.0
@mattermost/client@8.*
@mattermost/client@8.1.1
@mattermost/client@9.*
@mattermost/client@9.0.0
@mattermost/client@9.1.0
@mattermost/types@8.*
@mattermost/types@8.1.1
@mattermost/types@9.*
@mattermost/types@9.0.0
@mattermost/types@9.1.0
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
cloud-2023-01-26-1
cloud-2023-07-26-1
server/public/v0.*
server/public/v0.0.5
v0.*
v0.5.0
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
v7.*
v7.8.0
v7.8.1
v7.8.10
v7.8.10-rc3
v7.8.10-rc4
v7.8.10-rc5
v7.8.11
v7.8.11-rc1
v7.8.12
v7.8.12-rc1
v7.8.12-rc2
v7.8.2
v7.8.3
v7.8.4
v7.8.5
v7.8.6
v7.8.7
v7.8.8
v7.8.9
v8.*
v8.1.0
v8.1.0-rc2
v8.1.1
v8.1.1-rc1
v8.1.1-rc2
v8.1.2
v8.1.2-rc1
v8.1.2-rc2
v8.1.3
v8.1.3-rc1
v8.1.3-rc2
v9.*
v9.0.0
v9.0.0-rc2
v9.0.1
v9.0.1-rc1
v9.1.0
v9.1.0-rc2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-40703.json"