Name: CVE-2026-43507: Allocation of Resources Without Limits or Throttling
Creator: Rapid7
Published: 2026-05-01T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-43507, CWE-770, CVSS 5.3, EPSS 0.00641

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 Details

CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade prosody	May 5, 2026	May 1, 2026
Debian	—	Upgrade prosody	May 10, 2026	May 10, 2026
Freebsd	—	Upgrade prosody	May 13, 2026	Apr 30, 2026

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CVSS Details

Covered by Rapid7

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