What’s Vulnerable › Vulnerabilities

CVE-2022-0432: Prototype Pollution in mastodon/mastodon

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-02 · updated 2026-06-17
• Weakness: CWE-1321

Description

Prototype Pollution in GitHub repository mastodon/mastodon prior to 3.5.0.

Affected products

• mastodon: before 3.5.0 — fixed in 3.5.0

How to fix

Upgrade to a fixed version: mastodon 3.5.0. Check the vendor advisory for mitigations.

References

• https://github.com/mastodon/mastodon/commit/4d6d4b43c6186a13e67b92eaf70fe1b70ea24a09
• https://huntr.dev/bounties/d06da292-7716-4d74-a129-dd04773398d7
• https://github.com/mastodon/mastodon/commit/4d6d4b43c6186a13e67b92eaf70fe1b70ea24a09
• https://huntr.dev/bounties/d06da292-7716-4d74-a129-dd04773398d7

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