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CVE-2022-32189
Panic when decoding Float and Rat types in math/big
High7.5EPSS 2.8%
- Published
- Updated
- Reserved
- Assigned by
- Go
Description
A too-short encoded message can cause a panic in Float.GobDecode and Rat GobDecode in math/big in Go before 1.17.13 and 1.18.5, potentially allowing a denial of service.
Timeline
ID reserved
By Go
- 2 months later
· 2 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.8% · top 14% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- CWE 400: Uncontrolled Resource Consumption
Affected products
Go standard library · math/big
- affected < 1.17.13
- affected 1.18.0-0 – < 1.18.5
References (5)
- https://go.dev/cl/417774 (opens in a new tab)x_transferred
- https://go.googlesource.com/go/+/055113ef364337607e3e72ed7d48df67fde6fc66 (opens in a new tab)x_transferred
- https://go.dev/issue/53871 (opens in a new tab)x_transferred
- https://groups.google.com/g/golang-announce/c/YqYYG87xB10 (opens in a new tab)x_transferred
- https://pkg.go.dev/vuln/GO-2022-0537 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-32189)Record last updated .