CVE-2026-43506

MEDIUM
Published May 1, 2026 Modified May 1, 2026 CWE-401

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 memory leaks from unauthenticated connections.

CVSS v3.1 Score

5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploit Prediction

0.0006
Probability of exploitation
0.18%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor Product
prosody prosody
prosody prosody

References

Frequently Asked Questions

What is CVE-2026-43506? +
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 memory leaks from unauthenticated connections. It has a CVSS v3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2026-43506? +
CVE-2026-43506 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0006, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-43506? +
CVE-2026-43506 affects products from prosody, specifically: prosody. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-43506? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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