CVE-2022-0217

7.5 highEPSS 5.5%

High (7.5) in prosody prosody. EPSS 5.5% chance of exploitation in the next 30 days.

It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).

Severity

CVSS 3.1

7.5 high

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

EPSS: 5.5% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWEs: CWE-611, CWE-776
Published: 2022-08-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

prosody:prosody

References

https://bugzilla.redhat.com/show_bug.cgi?id=2040639
https://prosody.im/security/advisory_20220113/
https://prosody.im/security/advisory_20220113/1.patch
https://bugzilla.redhat.com/show_bug.cgi?id=2040639
https://prosody.im/security/advisory_20220113/

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