Vulnerability Description
An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by XML parsing resource amplification from unauthenticated connections.
CVSS Score
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Prosody | Prosody | < 0.12.6 |
Related Weaknesses (CWE)
References
- https://blog.unionium.org/ARTICLES/1.HTMThird Party Advisory
- https://prosody.im/security/advisory_735dd9d3/MitigationPatchVendor Advisory
- https://www.openwall.com/lists/oss-security/2026/05/01/5Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2026-43507?
CVE-2026-43507 is a vulnerability with a CVSS score of 5.3 (MEDIUM). An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by XML parsing resource amplification from unauthent...
How severe is CVE-2026-43507?
CVE-2026-43507 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43507?
Check the references section above for vendor advisories and patch information. Affected products include: Prosody Prosody.