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TI-2026-40481 Aliases CVE-2026-56091GHSA-qj64-jj84-w38j

Apache Shiro: Authentication bypass in Guice-Web integration

Priority LOW 37CWE-289Published · Updated

Key facts

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

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

Summary

When using Apache Shiro with the shiro-guice module in a web servlet context, a specially crafted HTTP request may cause an authentication bypass. This vulnerability is similar to https://www.cve.org/CVERecord?id=CVE-2020-1957 https://www.cve.org/CVERecord , except that it affects the `shiro-guice` module instead of the `shiro-spring` module. This issue affects all Apache Shiro versions through 2.x, and 3.0.0-alpha-1 only when using `shiro-guice` module in a web servlet context. Upgrade to version 3.0.0 or later, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00669 52nd percentileScored 2026-11-07
Fix Fixed org.apache.shiro:shiro-guice (Maven): 3.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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 Shiroup to 2.99.99; 3.0.0-alpha-0 – 3.0.0-alpha-1—No fix listedCNA
—org.apache.shiro:shiro-guice (Maven)2.0.0 to before 3.0.03.0.0Patch availableGHSA-qj64-jj84-w38j
  • Apache Shiro VendorApache Affected up to 2.99.99; 3.0.0-alpha-0 – 3.0.0-alpha-1 Fixed in — No fix listed CNA
  • org.apache.shiro:shiro-guice (Maven) Vendor— Affected 2.0.0 to before 3.0.0 Fixed in 3.0.0 Patch available GHSA-qj64-jj84-w38j

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

  • Fix · GHSA-qj64-jj84-w38j org.apache.shiro:shiro-guice (Maven) Fixed in 3.0.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56091
  2. 2026-10-03 Alias added: GHSA-qj64-jj84-w38j
  3. 2026-11-03 Fix available: Maven/org.apache.shiro:[email protected] · GHSA-qj64-jj84-w38j
  4. 2026-11-03 CVSS score added · GHSA-qj64-jj84-w38j
  5. 2026-11-03 Weakness changed · GHSA-qj64-jj84-w38j
  6. 2026-11-03 5 new references · GHSA-qj64-jj84-w38j

References

Advisory 2

Other 3

  • 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