CVE-2026-4202: Ayacoo/redirect tab Broken Access Control Vulnerability

LOW
Advisory Identifier: GHSA-755r-r738-mjgp
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CVSS 4.3
CWE-862 CWE-200
Published
Advisory Summary

CVE-2026-4202 is a LOW (CVSS 4.3) broken access control vulnerability (CWE-862: Missing Authorization) affecting Ayacoo/redirect tab libraries in the Packagist ecosystem. The issue involves broken access control in extension "redirect tab" (redirect_tab). Remediation is available by upgrading affected packages to version 2.1.2, 3.1.7, 4.0.5.

CVE-2026-4202 at a Glance

CVE Identifier CVE-2026-4202
GHSA Identifier GHSA-755r-r738-mjgp
Severity LOW
CVSS v3.1 Base Score 4.3
CWE Classification CWE-862: Missing Authorization
Affected Product Ayacoo/redirect tab
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-4202

To remediate this vulnerability, upgrade all affected Ayacoo/redirect tab dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ayacoo/redirect-tab fixed: 2.1.2 
Upgrade ayacoo/redirect-tab to 2.1.2
ayacoo/redirect-tab fixed: 3.1.7 
Upgrade ayacoo/redirect-tab to 3.1.7
ayacoo/redirect-tab fixed: 4.0.5 
Upgrade ayacoo/redirect-tab to 4.0.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for ayacoo/redirect-tab

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-4202, inspect your project dependencies for Ayacoo/redirect tab:

inspect dependencies for ayacoo/redirect-tab

Analyze the terminal output to locate any version of Ayacoo/redirect tab in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Ayacoo/redirect tab, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The extension fails to verify, if an authenticated user has permissions to access to redirects resulting in exposure of redirect records when editing a page.

CVE-2026-4202 Affected Ayacoo/redirect tab Versions

3 component(s)
Fixed Versions:
2.1.23.1.74.0.5
Product / Package Ecosystem Affected Versions Fixed Version
ayacoo/redirect-tab
 Packagist
< 2.1.2
2.1.2
ayacoo/redirect-tab
 Packagist
≥ 3.0.0
< 3.1.7
3.1.7
ayacoo/redirect-tab
 Packagist
≥ 4.0.0
< 4.0.5
4.0.5

References

NVD — CVE-2026-4202 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4202
Security Fix Commit FIX COMMIT
https://github.com/ayacoo/redirect_tab/commit/085f4cbf9848241510b5032d1b330889f6de6596
Ayacoo/redirect tab Source Repository REPOSITORY
https://github.com/ayacoo/redirect_tab
Ayacoo/redirect tab Security Information SECURITY
https://typo3.org/security/advisory/typo3-ext-sa-2026-006

Frequently Asked Questions

What is CVE-2026-4202?
CVE-2026-4202 is a security vulnerability in Ayacoo/redirect tab involving Broken Access Control in extension "Redirect Tab" (redirect_tab) under CWE-862: Missing Authorization.
Which Ayacoo/redirect tab versions are affected?
Affected versions include releases prior to 2.1.2, 3.1.7, 4.0.5 across affected packages: ayacoo/redirect-tab.
What version fixes CVE-2026-4202?
Upgrading to 2.1.2, 3.1.7, 4.0.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ayacoo/redirect-tab affected?
Yes, ayacoo/redirect-tab is affected in releases prior to 2.1.2, 3.1.7, 4.0.5. Upgrade your dependency to 2.1.2, 3.1.7, 4.0.5 or later.
What is the CVSS score of CVE-2026-4202?
CVE-2026-4202 has a CVSS v3.1 base score of 4.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-4202?
CVE-2026-4202 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2026-4202?
Run the dependency tree command: 'inspect dependencies for ayacoo/redirect-tab'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-755r-r738-mjgp",
  "modified" : "2026-04-27T16:45:37Z",
  "published" : "2026-03-17T09:31:28Z",
  "aliases" : [ "CVE-2026-4202" ],
  "summary" : "Broken Access Control in extension \"Redirect Tab\" (redirect_tab)",
  "details" : "The extension fails to verify, if an authenticated user has permissions to access to redirects resulting in exposure of redirect records when editing a page.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "ayacoo/redirect-tab"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.1.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "ayacoo/redirect-tab"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.1.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "ayacoo/redirect-tab"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.0.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-4202"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ayacoo/redirect_tab/commit/085f4cbf9848241510b5032d1b330889f6de6596"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ayacoo/redirect_tab"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-ext-sa-2026-006"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-862" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-18T16:17:16Z",
    "nvd_published_at" : "2026-03-17T09:16:14Z"
  }
}