CVE-2026-43507

MEDIUM

Prosody < 0.12.6 and 1.0.0-13.0.0 < 13.0.5 - Unauthenticated Denial of Service via XML Parsing Resource Amplification

Title source: llm

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.

References (3)

Core 3

Core References

https://www.openwall.com/lists/oss-security/2026/05/01/5

https://prosody.im/security/advisory_735dd9d3/

https://blog.unionium.org/ARTICLES/1.HTM

Scores

CVSS v3 5.3

EPSS 0.0035

EPSS Percentile 26.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-770

Status published

Products (3)

Prosody/Prosody < 0.12.6

prosody/prosody < 0.12.6

Prosody/Prosody 1.0.0 - 13.0.5

Published May 01, 2026

Tracked Since May 01, 2026