Summary
Successful exploitation of these vulnerabilities could allow an attacker to disclose sensitive information.
The following versions of SpiceJet Online Booking System are affected:
- Online Booking System vers:all/* (CVE-2026-6375, CVE-2026-6376)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 7.5 | SpiceJet | SpiceJet Online Booking System | Authorization Bypass Through User-Controlled Key, Missing Authentication for Critical Function |
Background
- Critical Infrastructure Sectors: Transportation Systems
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: India
Vulnerabilities
CVE-2026-6375
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.
Affected Products
SpiceJet Online Booking System
Vendor:
SpiceJet
Product Version:
SpiceJet Online Booking System: vers:all/*
Product Status:
known_affected
Relevant CWE: CWE-639 Authorization Bypass Through User-Controlled Key
Metrics
CVE-2026-6376
A weakness in SpiceJet’s public booking retrieval page permits full passenger booking details to be accessed using only a PNR and last name, with no authentication or verification mechanisms. This results in exposure of extensive personal, travel, and booking metadata to any unauthenticated user who can obtain or guess those basic inputs. The issue arises from improper access control on a sensitive data retrieval function.
Affected Products
SpiceJet Online Booking System
Vendor:
SpiceJet
Product Version:
SpiceJet Online Booking System: vers:all/*
Product Status:
known_affected
Relevant CWE: CWE-306 Missing Authentication for Critical Function
Metrics
Acknowledgments
- Owais Shaikh reported these vulnerabilities to CISA
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
Revision History
- Initial Release Date: 2026-04-23
| Date | Revision | Summary |
|---|---|---|
| 2026-04-23 | 1 | Initial Publication |
