CVE-2022-0217

HIGH
7.5
CVSS Score
Published: August 26, 2022 at 05:25 PM UTC
Updated: June 17, 2026 at 04:20 AM UTC
1 product affected across 1 vendorProsody

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Severity
HIGH7.5
Exploit prediction
EPSS 6%

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.11.12
Vendor states this is fixed in 0.11.12 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_MISCIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2040639
x_refsource_MISCExploitPatchVendor Advisory
https://prosody.im/security/advisory_20220113/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-776CWE-611

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