What’s Vulnerable › Vulnerabilities

CVE-2022-30633: Stack exhaustion when unmarshaling certain documents in encoding/xml

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% 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 Unmarshal in encoding/xml before Go 1.17.12 and Go 1.18.4 allows an attacker to cause a panic due to stack exhaustion via unmarshalling an XML document into a Go struct which has a nested field that uses the 'any' field tag.

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/417061
• https://go.dev/issue/53611
• https://go.googlesource.com/go/+/c4c1993fd2a5b26fe45c09592af6d3388a3b2e08
• https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
• https://pkg.go.dev/vuln/GO-2022-0523
• https://go.dev/cl/417061
• https://go.dev/issue/53611
• https://go.googlesource.com/go/+/c4c1993fd2a5b26fe45c09592af6d3388a3b2e08
• https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
• https://pkg.go.dev/vuln/GO-2022-0523

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