CVE Explorer
CVE-2026-56091
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 ve
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.shiro:shiro-guice","product":"Apache Shiro","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"2.99.99","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"3.0.0-alpha-1","status":"affected","version":"3.0.0-alpha-0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2fd92e99b577a88d7aeca5356c8004058908c1cf8301dbe501be3f07c4442895 · sha256:a5c5b495215e4c80… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"YES","Recovery":"NOT_DEFINED","Safety":"PRESENT","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"AMBER","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/S:P/AU:Y/V:D/RE:L/U:Amber","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpac…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2fd92e99b577a88d7aeca5356c8004058908c1cf8301dbe501be3f07c4442895 · sha256:a5c5b495215e4c80… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-289","description":"CWE-289 Authentication Bypass by Alternate Name","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2fd92e99b577a88d7aeca5356c8004058908c1cf8301dbe501be3f07c4442895 · sha256:a5c5b495215e4c80… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/onmtxmy2qonbpx7xlw3o34x8sctv47r7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2fd92e99b577a88d7aeca5356c8004058908c1cf8301dbe501be3f07c4442895 · sha256:a5c5b495215e4c80… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.