CVE-2024-21655 json
Insufficient control of custom field value sizes
published 2024-01-12 2 y ago modified 2026-09-08 2 mo ago also BIT-discourse-2024-21655 , EUVD-2024-19281 , GHSA-m5fc-94mm-38fx
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
Discourse is a platform for community discussion. For fields that are client editable, limits on sizes are not imposed. This allows a malicious actor to cause a Discourse instance to use excessive disk space and also often excessive bandwidth. The issue is patched 3.1.4 and 3.2.0.beta4.
Patch / fix
- bitnami discourse 3.1.4
- discourse discourse 3.1.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| 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 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | discourse | <3.1.4 |
3.1.4 |
Affected products
- discourse discourse
Classification
References
-
github.com
/discourse/discourse/security/advisories/GHSA-m5fc-94mm-38fx
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-21655
web
Sources
- CVE List CVE-2024-21655
- NVD CVE-2024-21655
- OSV BIT-discourse-2024-21655
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