CVE-2026-43504 — MEDIUM (6.5)

Q: How severe is CVE-2026-43504?

CVE-2026-43504 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-43504?

Check the references section above for vendor advisories and patch information. Affected products include: Prosody Prosody.

Vulnerability Description

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5, when mod_proxy65 is enabled. Because mod_proxy65 mishandles access control in a paused scenario, relaying of unauthenticated traffic can occur.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Prosody	Prosody	< 0.12.6

Related Weaknesses (CWE)

CWE-863

References

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

FAQ

What is CVE-2026-43504?

CVE-2026-43504 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5, when mod_proxy65 is enabled. Because mod_proxy65 mishandles access control in a paused scenario, relaying of un...

How severe is CVE-2026-43504?

CVE-2026-43504 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-43504?

Check the references section above for vendor advisories and patch information. Affected products include: Prosody Prosody.