Authorization Bypass (IDOR)Weakness · CWE-639

CVE-2026-6375

HIGH · 8.7 CVSS v4.0 Published 2026-04-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
96/100
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
A vulnerability in SpiceJet’s booking API allows unauthenticated users to query passenger name records (PNRs) without any access controls. Because PNR identifiers follow a predictable pattern, an attacker could systematically enumerate valid records and obtain associated passenger names. This flaw stems from missing authorization checks on an endpoint intended for authenticated profile access.

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 confidence

The SpiceJet booking API lacks authorization checks on a PNR query endpoint, allowing unauthenticated users to retrieve passenger name records by exploiting predictable PNR identifier patterns. An attacker can systematically enumerate valid PNRs and extract associated passenger names without any credentials.

MitigationImplement authentication and role-based authorization checks on all PNR query endpoints, and introduce rate limiting or CAPTCHA to prevent systematic enumeration of PNR identifiers.

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
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 the booking API endpoint exposure
    Review your API gateway, load balancer, or web server logs for requests to endpoints related to passenger name record (PNR) retrieval, such as /booking/pnr/{pnr}, /api/v1/booking/{pnr}, or similar paths that accept PNR parameters
    Affected if The endpoint is publicly accessible without authentication requirements defined in the API gateway or ingress configuration
  2. Test unauthenticated PNR access
    Send a GET request to the suspected PNR lookup endpoint with a valid-format PNR (typically 6 alphanumeric characters) without including any authentication headers, cookies, or tokens
    Affected if The server returns HTTP 200 with passenger name or booking details instead of returning HTTP 401 Unauthorized or HTTP 403 Forbidden
  3. Verify authorization bypass across different PNRs
    Using the same unauthenticated request, test multiple different PNR values (e.g., ABC123, XYZ789) to confirm the endpoint accepts arbitrary PNR values without validating ownership
    Affected if Each request returns passenger booking data without requiring proof of legitimate access to that specific PNR
  4. Check API security configuration
    Inspect the API management layer, web application firewall (WAF), or backend service configuration for the booking endpoint to verify whether authorization policies are defined and enforced
    Affected if No authorization rule exists for the PNR endpoint, or the security layer allows all requests to pass through without validating user identity against the requested booking record

If the PNR lookup endpoint is accessible without authentication and returns passenger names for arbitrary PNR values without verifying requester ownership, the environment is affected by this broken access control vulnerability.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement authentication and role-based authorization checks on all PNR query endpoints, and introduce rate limiting or CAPTCHA to prevent systematic enumeration of PNR identifiers.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2026-6375 in production — separate from our analysis above.

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What this is

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