What’s Vulnerable › Vulnerabilities

CVE-2021-25927

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-26 · updated 2026-06-17
• Weakness: CWE-1321

Description

Prototype pollution vulnerability in 'safe-flat' versions 2.0.0 through 2.0.1 allows an attacker to cause a denial of service and may lead to remote code execution.

Affected products

• safe-flat: from 2.0.0 before 2.0.2 — fixed in 2.0.2

How to fix

Upgrade to a fixed version: safe-flat 2.0.2. Check the vendor advisory for mitigations.

References

• https://github.com/jessie-codes/safe-flat/commit/4b9b7db976bba8c968354f4315f5f9c219b7cbf3
• https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25927
• https://github.com/jessie-codes/safe-flat/commit/4b9b7db976bba8c968354f4315f5f9c219b7cbf3
• https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25927

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