CVE-2021-43850

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2021-43850
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43850.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-43850
Aliases
Published
2022-01-04T20:15:07.667Z
Modified
2026-07-09T12:20:31.588853Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Discourse is an open source platform for community discussion. In affected versions admins users can trigger a Denial of Service attack via the /message-bus/_diagnostics path. The impact of this vulnerability is greater on multisite Discourse instances (where multiple forums are served from a single application server) where any admin user on any of the forums are able to visit the /message-bus/_diagnostics path. The problem has been patched. Please upgrade to 2.8.0.beta10 or 2.7.12. No workarounds for this issue exist.

References

Affected packages

Git / github.com/discourse/discourse

Affected ranges

Type
GIT
Repo
https://github.com/discourse/discourse
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
81b398030ef4389a4a8192a287bc1b26203d58e0
Introduced
05c1d3c9cdd7f3e365bedc397dd92a7e7bc2c40f
Last affected
c4d3b6556d750b9157a766ee370f2b4945dbb986
Fixed
7a8ec129fb54f188b2da6588c9d24d3a36eb0d39
Database specific 
{
    "cpe": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta2:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta3:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta4:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta5:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta6:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta7:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta8:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta9:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.7.12"
        },
        {
            "introduced": "2.8.0-beta1"
        },
        {
            "last_affected": "2.8.0-beta1"
        },
        {
            "introduced": "2.8.0-beta2"
        },
        {
            "last_affected": "2.8.0-beta2"
        },
        {
            "introduced": "2.8.0-beta3"
        },
        {
            "last_affected": "2.8.0-beta3"
        },
        {
            "introduced": "2.8.0-beta4"
        },
        {
            "last_affected": "2.8.0-beta4"
        },
        {
            "introduced": "2.8.0-beta5"
        },
        {
            "last_affected": "2.8.0-beta5"
        },
        {
            "introduced": "2.8.0-beta6"
        },
        {
            "last_affected": "2.8.0-beta6"
        },
        {
            "introduced": "2.8.0-beta7"
        },
        {
            "last_affected": "2.8.0-beta7"
        },
        {
            "introduced": "2.8.0-beta8"
        },
        {
            "last_affected": "2.8.0-beta8"
        },
        {
            "introduced": "2.8.0-beta9"
        },
        {
            "last_affected": "2.8.0-beta9"
        }
    ]
}

Affected versions

2.*
2.8.0-beta1
2.8.0-beta2
2.8.0-beta3
2.8.0-beta4
2.8.0-beta5
2.8.0-beta6
2.8.0-beta7
2.8.0-beta8
2.8.0-beta9
v0.*
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4
v0.8.5
v0.8.6
v0.8.7
v0.8.8
v0.8.9
v0.9.0
v0.9.1
v0.9.2
v0.9.2.5
v0.9.2.6
v0.9.3
v0.9.4
v0.9.5
v0.9.5.1
v0.9.5.2
v0.9.6
v0.9.6.1
v0.9.6.3
v0.9.6.4
v0.9.7
v0.9.7.1
v0.9.7.2
v0.9.7.3
v0.9.7.4
v0.9.7.5
v0.9.7.6
v0.9.7.7
v0.9.7.8
v0.9.7.9
v0.9.8
v0.9.8.1
v0.9.8.10
v0.9.8.11
v0.9.8.2
v0.9.8.3
v0.9.8.4
v0.9.8.5
v0.9.8.6
v0.9.8.7
v0.9.8.8
v0.9.8.9
v0.9.9.1
v0.9.9.10
v0.9.9.11
v0.9.9.12
v0.9.9.13
v0.9.9.14
v0.9.9.15
v0.9.9.16
v0.9.9.17
v0.9.9.18
v0.9.9.2
v0.9.9.3
v0.9.9.4
v0.9.9.5
v0.9.9.6
v0.9.9.7
v0.9.9.8
v0.9.9.9
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.6.10
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.6.8
v1.6.9
v1.7.0
v1.7.1
v1.7.10
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.8.10
v1.8.11
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v1.8.8
v1.8.9
v1.9.0
v1.9.1
v1.9.2
v1.9.3
v1.9.4
v1.9.5
v1.9.6
v1.9.7
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.3.0
v2.3.1
v2.3.10
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v2.5.5
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.7.0
v2.7.1
v2.7.10
v2.7.11
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.6
v2.7.7
v2.7.8
v2.7.9
v2.8.0.beta1
v2.8.0.beta2
v2.8.0.beta3
v2.8.0.beta4
v2.8.0.beta5
v2.8.0.beta6
v2.8.0.beta7
v2.8.0.beta8
v2.8.0.beta9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43850.json"