CVE-2022-40664Network attack vector

Authentication bypass via single-pass request filtering

Published Oct 12, 2022 · Updated May 15, 2025

Authentication bypass in Apache Shiro before 1.10.0 allows remote attackers to reach protected application resources through dispatched requests. The root ShiroFilter's once-per-request marker causes later RequestDispatcher forward or include passes to skip the filter chain instead of reevaluating access controls. Exposure requires a Shiro-secured web application that forwards or includes a protected request; the result is unauthorized access to that resource.

CVSS severity9.8
Critical
EPSS probability2.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Apache Shiro before 1.10.0 allows remote attackers to reach protected application resources through dispatched requests. The root ShiroFilter's once-per-request marker causes later RequestDispatcher forward or include passes to skip the filter chain instead of reevaluating access controls. Exposure requires a Shiro-secured web application that forwards or includes a protected request; the result is unauthorized access to that resource.

The record

CVE
CVE-2022-40664
Published
Oct 12, 2022
Updated
May 15, 2025
Vendor
The Apache Software Foundation
Product
Apache Shiro
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 12, 2022CVE publishedPublication date reported by the CVE source.
  2. May 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Apache Shiro <1.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Shiroversion=Apache Shiro <1.10.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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