Denial of Service via Opengraph Data Cache
CVE-2023-5330

7.5HIGH

Key Information:

Vendor

Mattermost
Status
Mattermost
Vendor
CVE Published:
9 October 2023

What is CVE-2023-5330?

Mattermost contains a flaw that allows an attacker to exploit the caching mechanism for OpenGraph data. By sending specially crafted requests to the /api/v4/opengraph endpoint, an attacker can fill the cache with oversized entries. This can lead to server unavailability, disrupting service for legitimate users and potentially impacting overall system functionality.

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Affected Version(s)

Mattermost 0 <= 7.8.10

Mattermost 0 <= 8.0.2

Mattermost 0 <= 8.1.1

References

https://mattermost.com/security-updates

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

vultza (vultza)
JSON
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