CVE-2022-0903 - CVE House
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Status published Medium CVE-2022-0903

Stack overflow in SAML login in Mattermost

Vulnerability Description

A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and including 6.3.2 allows an attacker to crash the server via submitting a maliciously crafted POST body.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Thanks to Juho Nurminen for contributing to this improvement under the Mattermost responsible disclosure policy.

References

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Affected Vendor

Affected Software

Mattermost
Vulnerable Versions:
6.3, 6.2, 6.1, 5.37

Timeline

Official Publish: March 9th, 2022
Last Modified: December 6th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.