CVE-2024-43789 json
Denial of service by the absence of restrictions on replies to posts in Discourse
published 2y ago modified 2mo ago also BIT-discourse-2024-43789 , EUVD-2024-40449 , GHSA-62cq-cpmc-hvqq
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- bitnami discourse 3.3.1
- discourse discourse 3.3.1, 3.4.0.beta1
Is CVE-2024-43789 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2y ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | discourse | <3.3.1 |
3.3.1 |
Affected products
- discourse discourse
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/discourse/discourse/security/advisories/GHSA-62cq-cpmc-hvqq
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-43789
web
Sources
- CVE List CVE-2024-43789
- NVD CVE-2024-43789
- OSV BIT-discourse-2024-43789
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.