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CWE-346Weakness · CWE-346

CVE-2026-6508

CRITICAL · 9.8 CVSS v3.1 Published 2026-05-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Liderahenk: from 2.0.1 before 2.0.2.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Origin validation error in Liderahenk allows attackers to bypass access control list (ACL) constraints and access functionality they are not authorized to use. This is a critical authorization bypass vulnerability stemming from improper validation of request origin or context.

MitigationUpgrade to Liderahenk version 2.0.2 or later. Conduct thorough access control testing across all endpoints to verify the fix is complete and no other authorization paths exist.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Liderahenk is installed
    Look for Liderahenk processes running on the system, or check for its installation directory. Common locations may include /opt/liderahenk, /usr/local/liderahenk, or check service status using system commands like systemctl status liderahenk or ps aux | grep liderahenk
    Affected if Liderahenk is not found on the system, meaning this CVE does not apply
  2. Determine the installed Liderahenk version
    Check the installed version by inspecting version files, using CLI commands like liderahenk --version, or examining the application metadata in the installation directory. If a package manager was used, query it with rpm -q liderahenk or dpkg -l liderahenk depending on the OS
    Affected if The version cannot be determined or is below 2.0.2, indicating potential vulnerability
  3. Compare installed version against the fixed release
    Review the version number identified in the previous step. The fixed version is 2.0.2. Compare numerically: any version below 2.0.2 (including 2.0.1, 2.0.0, 1.x.x, etc.) is considered affected
    Affected if The installed version is lower than 2.0.2, meaning the origin validation fix is not applied
  4. Verify if the web interface or API is exposed
    Check network configuration for listeners on ports typically used by Liderahenk (such as 80, 443, or 8080). Review web server or application server configuration to confirm HTTP/HTTPS endpoints are active. Inspect firewall rules to determine if the application is accessible from network sources
    Affected if The application is network-accessible and the version is below 2.0.2, the origin validation bypass can be exploited by remote attackers

You are affected if Liderahenk is installed with a version lower than 2.0.2 and the application is accessible, as the origin validation flaw allows ACL bypass for unauthorized functionality access.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to Liderahenk version 2.0.2 or later. Conduct thorough access control testing across all endpoints to verify the fix is complete and no other authorization paths exist.

Recommended fix Moderate confidence

2.0.2

  1. 1. Identify the current installed version of Liderahenk in your environment.
  2. 2. Backup all Liderahenk configuration files and data before proceeding with the upgrade.
  3. 3. Download Liderahenk version 2.0.2 from the official TUBITAK BILGEM Software Technologies Research Institute distribution channel.
  4. 4. Follow the official upgrade documentation to install version 2.0.2.
  5. 5. After upgrade, verify the installation and test that the Origin Validation Error vulnerability is remediated.
  6. 6. Confirm all ACL configurations are properly constrained as per version 2.0.2 documentation.

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-6508 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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