Home/CVE/Discourse is an open-source discussion platform. Prior to version 2.9.0.beta13, users can post chat messages of an unlim
CVE

CVE-2022-41921

Discourse is an open-source discussion platform. Prior to version 2.9.0.beta13, users can post chat messages of an unlim

Discourse is an open-source discussion platform. Prior to version 2.9.0.beta13, users can post chat messages of an unlimited length, which can cause a denial of service for other users when posting huge amounts of text. Users should upgrade to version 2.9.0.beta13, where a limit has been introduced.

No known workarounds are available.

LOW · CVSS 3.5 EPSS 0.00314
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

2
discourse< 2.9.0
discourseall versions
▣

Scoring & Timeline

3.5
LOW · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Nov 2022 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/discourse/discourse/commit/3de765c89524a526ce611e11468d758a471a933fPatchThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-mfh7-6cv6-qcccThird Party Advisory
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