Prototype Pollution in mastodon/mastodon
Priority LOW 35CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Prototype Pollution in GitHub repository mastodon/mastodon prior to 3.5.0.
Why it matters now
EPSS 0.04429 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mastodon/mastodon (mastodon): 3.5.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA mastodon/mastodon (mastodon) Fixed in 3.5.0
Timeline
- 2026-10-02 Threatist record created from CVE-2022-0432
- 2026-10-03 Alias added: GHSA-fqq9-f3pw-4cff
References
More Mastodon vulnerabilities
- TI-2022-02004 Improper Restriction of Excessive Authentication Attempts in mastodon/mastodon CVSS 3.1CRITICAL 9.8
- TI-2025-34613 Mastodon e‑mail throttle misconfiguration allows unlimited email confirmations against unconfirmed emails CVSS 3.1HIGH 7.5
- TI-2022-22936 Mastodon through 4.0.2 allows attackers to cause a denial of service (large Sidekiq pull… CVSS 3.1HIGH 7.5
- TI-2023-18301 Mastodon vulnerable to arbitrary file creation through media attachments CVSS 3.1CRITICAL 10.0
- TI-2023-13359 Mastodon's blind LDAP injection in login allows the attacker to leak arbitrary attributes from LDAP database CVSS 3.1HIGH 7.7
- TI-2024-16846 External OpenID Connect Account Takeover by E-Mail Change in mastodon CVSS 3.1HIGH 7.4
Sources
- CVE-2022-0432 · CVE Program
- CVE-2022-0432 · NVD
- FIRST EPSS
- GHSA-fqq9-f3pw-4cff · GitHub Advisory Database · CC BY 4.0
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