CVE-2026-4639
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 · uneditedVitals ESP developed by Galaxy Software Services has a Incorrect Authorization vulnerability, allowing authenticated remote attackers to perform certain administrative functions, thereby escalating privileges.
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 confidenceVitals ESP contains an incorrect authorization vulnerability that allows authenticated users to bypass role-based access controls and execute certain administrative functions they should not have permission to access, resulting in privilege escalation.
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<= 6.3CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify installed Vitals ESP versionLocate the Vitals ESP installation directory and check the version information file, typically found in the application help or about section, or query the application banner/version endpoint if availableAffected if The installed version is Gss Vitalsesp 6.3 or any lower version number
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Confirm user authentication is enabledVerify that the application requires user authentication for access - check if login is required to access the web interface or API endpointsAffected if Authentication is required (the vulnerability requires authenticated users to exploit)
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Examine role-based access control configurationReview the application's user role definitions and permission mappings - check if roles are stored client-side (e.g., in cookies, tokens, or form fields) rather than validated server-side for each requestAffected if Roles or permissions are transmitted from the client or not validated server-side for administrative actions
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Test administrative function access with limited userCreate or use a non-administrative user account and attempt to access administrative functions, API endpoints, or menu items that should be restricted to higher-privileged rolesAffected if A lower-privileged authenticated user can access or execute administrative functions they should not be authorized to perform
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Inspect API or form requests for role indicatorsCapture and review HTTP requests/responses when interacting with administrative features - look for role parameters, privilege flags, or user type fields submitted from the client sideAffected if Role or privilege information is submitted from the client and not independently verified by the server
You are affected if you are running Gss Vitalsesp version 6.3 or lower and an authenticated user with limited permissions can perform administrative functions they should not have access to.
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 dataApply vendor patch to enforce proper authorization checks on administrative functions and verify role-based access controls are correctly enforced for all privileged operations.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,504.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-4639 — 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-2026-4639 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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