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High 7.5Published Aug 9, 2022
CVE-2022-32189Panic when decoding Float and Rat types in math/big
Updated under an hour ago ()
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It affects Go standard library math/big and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Go
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Go standard library math/big go_standard_library:math_big (from the name) | before 1.17.13; from 1.18.0-0 before 1.18.5 | CNA record |
golang go golang:go | before 1.17.13; from 1.18.0 before 1.18.5 | NVD |
References
- https://go.dev/cl/417774
- https://go.googlesource.com/go/+/055113ef364337607e3e72ed7d48df67fde6fc66
- https://go.dev/issue/53871
- https://groups.google.com/g/golang-announce/c/YqYYG87xB10
- https://pkg.go.dev/vuln/GO-2022-0537
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.