Medium severity · published Oct 7, 2024
CVE-2024-43789
Denial of service by the absence of restrictions on replies to posts in Discourse
4.3
CVSS
0.5%
EPSS
No
On KEV
Description
Discourse is an open source platform for community discussion. A user can create a post with many replies, and then attempt to fetch them all at once. This can potentially reduce the availability of a Discourse instance. This problem has been patched in the latest version of Discourse. All users area are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
discourse · discourse
stable: < 3.3.1; beta: < 3.4.0.beta1 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-43789
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-43789
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-62cq-cpmc-hvqq
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