PT-2026-138001
CVE-2025-66621
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Published
2026-11-06
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Updated
2026-11-06
Description by
Score
N/A
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Name of the Vulnerable Software and Affected Versions
Apache James versions prior to 3.9.1
Description
SASL OAuthBearer/XOAUTH2 fails to correctly validate the
AUD claim of JWT payloads when introspection is not configured. This allows an attacker with valid credentials to access the mail server without proper authorization.Recommendations
Upgrade to version 3.9.1 or later to force explicit configuration of
aud claims and enable introspection. Found an issue in the description? Have something to add? Feel free to write us 👾