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01 Record

CVE-2022-0903

Stack overflow in SAML login in Mattermost

MediumPUBLISHEDCNA: Mattermost
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

02 Description

Stack overflow in SAML login in Mattermost

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.82% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 57.0% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-03-09 15:17Z4 YR AGO
Last updated
2024-12-06 23:10Z1 YR AGO
Reserved
2022-03-09
Assigning CNA
Mattermost
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
Data version
5.1
Document digest
23250fa440931d9fc1a5e8adee5a3bb6404d88004bfbf22f698f1b2aa3fd4644

05 Affected products

VendorProductVersionsPlatforms
MattermostMattermost6.3 to < 6.3.3, 6.2 to < 6.2.3, 6.1 to < 6.1.3, 5.37 to < 5.37.8—

06 References

07 Remediation

Update the Mattermost version to v6.3.3, 6.2.3, 6.1.3, or 5.37.8, depending on the minor version being run