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TI-2025-44022 Aliases CVE-2025-66621GHSA-rg6c-rqpp-49q4

Apache James SASL OAUTHBEARER skips JWT audience validation

Priority LOW 22CWE-345Published · Updated

Key facts

Attack vector
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Privileges required
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User interaction
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Attack complexity
—
Impact type
Security bypass
Confidentiality · integrity · availability
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Fix status
Fixed

No CVSS vector from any source. Fix status from CNA. Impact type from CWE-345.

Summary

Apache James from 3.9.0 before 3.9.1 fails to correctly validate the aud claim of JWT payloads in SASL OAUTHBEARER and XOAUTH2 authentication when introspection is not configured (CWE-345). An attacker with valid credentials can access the mail server even when they are not authorized to do so.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Apache James SASL OAuthBearer/XOAUTH2 prior versions 3.9.1 fails to validate correctly AUD claim of JWT payloads when introspection is not configured. This allows an attacker with valid credentials to access the mail server even if they are not authorized to do so. We recommend users to upgrade to non vulnerable version that forces explicit configuration of aud claims and forces introspection.

Why it matters now

EPSS 0.00135 3rd percentileScored 2026-11-07
Fix Fixed Apache James (Apache Software Foundation): 3.9.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache James3.9.0 to before 3.9.13.9.1Patch availableCNA
  • Apache James VendorApache Affected 3.9.0 to before 3.9.1 Fixed in 3.9.1 Patch available CNA

Remediation

Upgrade Apache James to 3.9.1, which forces explicit configuration of aud claims and enforces introspection.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Apache James (Apache Software Foundation) Fixed in 3.9.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache James 3.9.1

    6 records Highest priority Priority LOW 6 LOW

    Other records, highest priority first

    • TI-2026-85900 Unbounded resource allocation in Apache James MIME parsingPriority LOW 38
    • TI-2026-85898 Path traversal in Apache James ManageSieve lets users write other users' scriptsPriority LOW 22
    • TI-2026-85897 Apache James WebAdmin exposed without authentication in default Docker setupPriority LOW 22
    Show all 6 records →

Timeline

  1. 2026-11-06 Threatist record created from CVE-2025-66621
  2. 2026-11-06 Alias added: GHSA-rg6c-rqpp-49q4

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences