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CVE

CVE-2023-44388

Discourse is an open source platform for community discussion. A malicious request can cause production log files to qui

Discourse is an open source platform for community discussion. A malicious request can cause production log files to quickly fill up and thus result in the server running out of disk space. This problem has been patched in the 3.1.1 stable and 3.2.0.beta2 versions of Discourse.

It is possible to temporarily work around this problem by reducing the client_max_body_size nginx directive. client_max_body_size will limit the size of uploads that can be uploaded directly to the server.

HIGH · CVSS 7.5 EPSS 0.00207
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

2
discourse<= 3.1.1
discourseall versions
▣

Scoring & Timeline

7.5
HIGH · 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 NVD16 Oct 2023 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
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.
http://nginx.org/en/docs/http/ngx_http_core_module.html#client_max_body_sizeThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-89h3-g746-xmwqVendor Advisory
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