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Vulnerabilities

Vulnerability · CVE-2026-9101

Prototype pollution in csv parsing logic during import can lead to untrusted file paths (but not arguments) entering shell.openExternal after specific user behavior le…

Published May 20, 2026 · catalog updated Sep 24, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2026-9101. EPSS is 0.45%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.45%
Remediation
Advisory link
Affected products
cpe mongodb/compass

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe mongodb/compass1.36.3
  • cpe mongodb/compass1.36.4
  • cpe mongodb/compass1.37.0
  • cpe mongodb/compass1.38.0
  • cpe mongodb/compass1.38.1
  • cpe mongodb/compass1.38.2
  • cpe mongodb/compass1.39.0
  • cpe mongodb/compass1.39.1

How to fix CVE-2026-9101

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-9101. EPSS is 0.45%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with 1.36.3, 1.36.4, 1.37.0, 1.38.0, 1.38.1, 1.38.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). EPSS 0.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 20, 2026 · NIST NVD

    Detected

    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.

  2. Sep 24, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-9101

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-9101

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-9101

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.