What’s Vulnerable › Vulnerabilities

CVE-2021-20329: Specific cstrings input may not be properly validated in the Go Driver

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-10 · updated 2026-06-17
• Weakness: CWE-1287

Description

Specific cstrings input may not be properly validated in the MongoDB Go Driver when marshalling Go objects into BSON. A malicious user could use a Go object with specific string to potentially inject additional fields into marshalled documents. This issue affects all MongoDB GO Drivers prior to and including 1.5.0.

Affected products

• MongoDB Go Driver: through 1.5.0

References

• https://github.com/mongodb/mongo-go-driver/releases/tag/v1.5.1
• https://github.com/mongodb/mongo-go-driver/releases/tag/v1.5.1

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