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TI-2026-85385 Aliases CVE-2026-73098GHSA-59fg-f5xc-xjg9

Unsafe reflection in Apache Juneau runs class initializers during parsing

Priority MEDIUM 49CWE-470Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Apache Juneau through 9.2.0 is affected. When the parser sets a java.lang.Class property, including parameterized forms, the default class swap loads the named class with initialization enabled, so input that names a class on the application classpath runs that class's static initializer. This is improper control of dynamically-loaded code (CWE-470). A remote attacker with no privileges and no user interaction can trigger it over the network, and the impact depends on the classes present in the deployment.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

Improper control of dynamically-loaded code vulnerability in Apache Juneau. When Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment. This issue affects Apache Juneau: through 9.2.0. Users are recommended to upgrade to version 9.2.1, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00462 40th percentileScored 2026-11-07
Fix Fixed Apache Juneau (Apache Software Foundation): 9.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Juneaubefore 9.2.19.2.1Patch availableCNA
  • Apache Juneau VendorApache Affected before 9.2.1 Fixed in 9.2.1 Patch available CNA

Remediation

Upgrade Apache Juneau to version 9.2.1, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA Apache Juneau (Apache Software Foundation) Fixed in 9.2.1

Fixed in the same release

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

  • Advisory ·

    Apache Juneau — lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1ly…

    9 records Highest priority Priority MEDIUM 9 MEDIUM

    Other records, highest priority first

    • TI-2026-85386 Cross-site request forgery in Apache Juneau via content query parameterPriority MEDIUM 48
    • TI-2026-85384 Unbounded memory allocation in Apache Juneau causes denial of servicePriority MEDIUM 44
    • TI-2026-85392 Path traversal in Apache Juneau DirectoryResource exposes filesPriority MEDIUM 43
    Show all 9 records → Advisory →

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-73098
  2. 2026-11-05 Alias added: GHSA-59fg-f5xc-xjg9
  3. 2026-11-05 CISA SSVC decision points changed

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

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