CVE-2026-43507
highAn issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5.
Vendor / product: Prosody — prosody
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
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-05-01 15:16
Modified: 2026-11-11 23:10
NVD status: Analyzed
Last synced 3 hours ago
Verified against the source API 2026-11-11 23:13 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
prosody / prosody <0.12.6, ≥13.0.0 <13.0.5
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://prosody.im/security/advisory_735dd9d3/
Patch / mitigation: https://prosody.im/security/advisory_735dd9d3/
Patch / mitigation: https://www.openwall.com/lists/oss-security/2026/05/01/5
References
- https://blog.unionium.org/ARTICLES/1.HTM cve@mitre.org
- https://prosody.im/security/advisory_735dd9d3/ cve@mitre.org
- https://www.openwall.com/lists/oss-security/2026/05/01/5 cve@mitre.org
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 23:13 UTC · record ↗