# CVE-2026-6376: Missing authentication for critical function in SpiceJet Online Booking System

> Unauthenticated attackers can access full passenger booking details using only a PNR and last name due to missing authentication controls.

- **Severity:** High 8.7 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Apr 2026
- **Updated:** 24 Apr 2026
- **Also known as:** GHSA-2pp5-c2qh-f9wq

## What is CVE-2026-6376?

CVE-2026-6376 is a high-severity missing authorization vulnerability in SpiceJet Online Booking System, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-6376?


## How do I fix CVE-2026-6376?

No fix has been published for CVE-2026-6376 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-6376 being exploited?

There is no known exploitation of CVE-2026-6376 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6376 and fix it if it is affected.

What it is: CVE-2026-6376 is a high-severity missing authorization vulnerability in SpiceJet Online Booking System, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-6376 in the wild and no public exploit code.

Affected product: SpiceJet Online Booking System. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-6376/ (Markdown: https://insights.sbomify.com/CVE-2026-6376/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6376
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6376
- OSV: https://osv.dev/vulnerability/CVE-2026-6376

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-6376/
Summaries are generated and may contain mistakes; the official description above is the record.