CVE-2026-43507

HIGH EPSS 26.7%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
26.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-770

Affected Products 2

VendorProductVersionRange
prosodyprosody* <0.12.6
prosodyprosody*≥13.0.0  –  <13.0.5

References 3

  • blog.unionium.org https://blog.unionium.org/ARTICLES/1.HTM
    Third Party Advisory
  • prosody.im https://prosody.im/security/advisory_735dd9d3/
    MitigationPatchVendor Advisory
  • openwall.com https://www.openwall.com/lists/oss-security/2026/05/01/5
    Mailing ListPatchThird Party Advisory

Remediation

  • prosody.im https://prosody.im/security/advisory_735dd9d3/
    MitigationPatchVendor Advisory
  • openwall.com https://www.openwall.com/lists/oss-security/2026/05/01/5
    Mailing ListPatchThird Party Advisory