How severe is CVE-2026-6376?

CVE-2026-6376 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2026-6376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6376?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-6376 have an EU (EUVD) identifier?

Yes. CVE-2026-6376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25300.

When was CVE-2026-6376 published?

CVE-2026-6376 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-6376

CVE-2026-6376 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25300
Weakness: CWE-306
Published: 2026-04-23
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-6376?: CVE-2026-6376 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2026-6376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-6376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-6376 have an EU (EUVD) identifier?: Yes. CVE-2026-6376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25300.
When was CVE-2026-6376 published?: CVE-2026-6376 was published on 2026-04-23 and last updated on 2026-06-17.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-113-04

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