CVE-2026-56091 (GCVE-0-2026-56091)
Vulnerability from cvelistv5 – Published: 2026-06-25 08:45 – Updated: 2026-06-25 12:10
VLAI
EPSS
VEX
Title
Apache Shiro: Authentication bypass in Guice-Web integration
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 12:10 UTC
CWE
- CWE-289 - Authentication Bypass by Alternate Name
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/onmtxmy2qonbpx7xl… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache Shiro |
Affected:
0 , ≤ 2.99.99
(semver)
Affected: 3.0.0-alpha-0 , ≤ 3.0.0-alpha-1 (semver) |
guessed |
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