What’s Vulnerable › Vulnerabilities

CVE-2026-9101: Prototype pollution in csv parsing

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-20 · updated 2026-09-24
• Weakness: CWE-1321

Description

Prototype pollution in csv parsing logic during import can lead to untrusted file paths (but not arguments) entering shell.openExternal after specific user behavior leading to "1-click" command execution.

Affected products

• MongoDB Compass: 1.36.3, 1.36.4, 1.37.0, 1.38.0, 1.38.1, 1.38.2 (+57)

References

• https://jira.mongodb.org/browse/COMPASS-10657

Get alerted when CVE-2026-9101 or the next vulnerability affects your stack