What’s Vulnerable › Vulnerabilities

CVE-2021-37601

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-30 · updated 2026-06-17

Description

muc.lib.lua in Prosody 0.11.0 through 0.11.9 allows remote attackers to obtain sensitive information (list of admins, members, owners, and banned entities of a Multi-User chat room) in some common configurations.

Affected products

• Prosody: from 0.11.0 through 0.11.9

References

• http://www.openwall.com/lists/oss-security/2021/07/28/4
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BZRRPCNOETB4MN4XSYPRBBKDIHO27DY/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EMKIOEP2CYWHVVUCNWISPE4AGH4IR7O2/
• https://prosody.im/
• https://prosody.im/security/advisory_20210722/
• http://www.openwall.com/lists/oss-security/2021/07/28/4
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BZRRPCNOETB4MN4XSYPRBBKDIHO27DY/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EMKIOEP2CYWHVVUCNWISPE4AGH4IR7O2/
• https://prosody.im/
• https://prosody.im/security/advisory_20210722/

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