What’s Vulnerable › Vulnerabilities

CVE-2022-30635: Stack exhaustion when decoding certain messages in encoding/gob

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-10 · updated 2026-06-17
• Weakness: CWE-674

Description

Uncontrolled recursion in Decoder.Decode in encoding/gob before Go 1.17.12 and Go 1.18.4 allows an attacker to cause a panic due to stack exhaustion via a message which contains deeply nested structures.

Affected products

• Go: before 1.17.12; from 1.18.0 before 1.18.4 — fixed in 1.17.12, 1.18.4

How to fix

Upgrade to a fixed version: Go 1.17.12, 1.18.4. Check the vendor advisory for mitigations.

References

• https://go.dev/cl/417064
• https://go.dev/issue/53615
• https://go.googlesource.com/go/+/6fa37e98ea4382bf881428ee0c150ce591500eb7
• https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
• https://pkg.go.dev/vuln/GO-2022-0526
• https://go.dev/cl/417064
• https://go.dev/issue/53615
• https://go.googlesource.com/go/+/6fa37e98ea4382bf881428ee0c150ce591500eb7
• https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
• https://pkg.go.dev/vuln/GO-2022-0526

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