CVE-2020-8086

Name: CVE-2020-8086
Creator: NVD / NIST
Published: 2020-01-28T17:15:12.46+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2020-8086 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The mod_auth_ldap and mod_auth_ldap2 Community Modules through 2020-01-27 for Prosody incompletely verify the XMPP address passed to the is_admin() function. This grants remote entities admin-only functionality if their username matches the username of a local admin.. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

The mod_auth_ldap and mod_auth_ldap2 Community Modules through 2020-01-27 for Prosody incompletely verify the XMPP address passed to the is_admin() function. This grants remote entities admin-only functionality if their username matches the username of a local admin.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Prosody	Mod Auth Ldap	<= 2020-01-27
Prosody	Mod Auth Ldap2	<= 2020-01-27
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ldap/mod_auth_ldap.luaThird Party Advisory
https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ldap2/mod_auth_ldap2.luaThird Party Advisory
https://prosody.im/security/advisory_20200128/Vendor Advisory
https://seclists.org/bugtraq/2020/Feb/5Mailing List, Third Party Advisory
https://www.debian.org/security/2020/dsa-4612Third Party Advisory
https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ldap/mod_auth_ldap.luaThird Party Advisory
https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ldap2/mod_auth_ldap2.luaThird Party Advisory
https://prosody.im/security/advisory_20200128/Vendor Advisory
https://seclists.org/bugtraq/2020/Feb/5Mailing List, Third Party Advisory
https://www.debian.org/security/2020/dsa-4612Third Party Advisory

Timeline

Published: Jan 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8086?

How severe is CVE-2020-8086?

CVE-2020-8086 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8086?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8086?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST