CVE-2026-23536
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 security issue was discovered in the Feast Feature Server's `/read-document` endpoint that allows an unauthenticated remote attacker to read any file accessible to the server process. By sending a specially crafted HTTP POST request, an attacker can bypass intended access restrictions to potentially retrieve sensitive system files, application configurations, and credentials.
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 confidenceThe Feast Feature Server contains a path traversal vulnerability in its `/read-document` endpoint that allows unauthenticated attackers to read arbitrary files accessible to the server process via specially crafted HTTP POST requests, bypassing intended access restrictions.
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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Identify Feast Feature Server presenceCheck if Feast Feature Server is running by querying process list, listening ports, or checking for feast-related services. Look for processes running feast or services listening on typical Feast ports.Affected if Feast Feature Server is running and network-accessible
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Check Feast versionRun 'feast --version' or check the installed feast package version via 'pip list | grep feast' or your package manager.Affected if Installed version matches the affected versions for this CVE or cannot be verified
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Verify /read-document endpoint exposureSend a test HTTP POST request to the /read-document endpoint (e.g., POST http://<server>/read-document) and observe if the endpoint responds.Affected if Endpoint is accessible and responds without requiring authentication
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Test for path traversal susceptibilitySend a crafted HTTP POST request to /read-document with path traversal sequences (e.g., ../../etc/passwd or ../../etc/shadow) in the file path parameter and check if the server returns file contents outside the intended directory.Affected if Server returns contents of files outside the intended directory, confirming path traversal is possible
If the Feast Feature Server is running with the /read-document endpoint exposed and responds to path traversal requests, the environment is affected by this vulnerability.
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.
From vendor dataRestrict access to the `/read-document` endpoint by implementing proper authentication/authorization and validate/sanitize all file path inputs to prevent directory traversal attacks.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-23536 — 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-2026-23536 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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