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CVE-2022-30633

Stack exhaustion when unmarshaling certain documents in encoding/xml

HIGH
7.5
CVSS Score
Published: August 9, 2022 at 08:16 PM UTC
Updated: June 17, 2026 at 04:43 AM UTC
2 products affected across 2 vendorsGoEncoding/xml

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Go· Golang
95%
v < 1.17.121.18.0 ≤ v < 1.18.4
Affected range stops below 1.17.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.18.4, so it looks safe — our inference, not a vendor statement
Encoding/xml· Go Standard Librarygo
60%
v < 1.17.121.18.0-0 ≤ v < 1.18.41.18.0-0
Affected range stops below 1.17.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.18.4, so it looks safe — our inference, not a vendor statement

References (5)

PatchVendor Advisory
Source: [email protected]
https://go.dev/cl/417061
Issue TrackingVendor Advisory
Source: [email protected]
https://go.dev/issue/53611
Mailing ListPatchVendor Advisory
Source: [email protected]
https://go.googlesource.com/go/+/c4c1993fd2a5b26fe45c09592af6d3388a3b2e08
Mailing ListVendor Advisory
Source: [email protected]
https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
Vendor Advisory
Source: [email protected]
https://pkg.go.dev/vuln/GO-2022-0523

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-674

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