CVE-2022-0432 json
Prototype Pollution in mastodon/mastodon
published 2022-02-02 4 y ago modified 2026-09-10 59 d ago also BIT-mastodon-2022-0432 , EUVD-2022-15573
- cvss
- 7.4
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.4%
- EPSS 4.4% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Prototype Pollution in GitHub repository mastodon/mastodon prior to 3.5.0.
Patch / fix
Exploit prediction
4.43% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Mastodon Prototype Pollution Vulnerability nuclei detection template
- huntr.dev https://huntr.dev/bounties/d06da292-7716-4d74-a129-dd04773398d7 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.4 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| OSV | 3.0 | 7.4 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mastodon | <3.5.0 |
3.5.0 |
Affected products
- mastodon mastodon/mastodon
Classification
- Weakness
-
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
References
-
github.com
/mastodon/mastodon/commit/4d6d4b43c6186a13e67b92eaf70fe1b70ea24a09
patch, third-party-advisory, advisory
-
huntr.dev
/bounties/d06da292-7716-4d74-a129-dd04773398d7
exploit, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-0432
web
Sources
- CVE List CVE-2022-0432
- NVD CVE-2022-0432
- OSV BIT-mastodon-2022-0432
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.