CVE-2026-39820

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/759940	Patch
https://go.dev/issue/78566	Issue Tracking
https://groups.google.com/g/golang-announce/c/qcCIEXso47M	Issue Tracking Mailing List
https://pkg.go.dev/vuln/GO-2026-4986	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:golang:go::::::::
	cpe:2.3:a:golang:go::::::::

History

13 May 2026, 15:10

Type	Values Removed	Values Added
References	~~() https://go.dev/cl/759940 -~~	() https://go.dev/cl/759940 - Patch
References	~~() https://go.dev/issue/78566 -~~	() https://go.dev/issue/78566 - Issue Tracking
References	~~() https://groups.google.com/g/golang-announce/c/qcCIEXso47M -~~	() https://groups.google.com/g/golang-announce/c/qcCIEXso47M - Issue Tracking, Mailing List
References	~~() https://pkg.go.dev/vuln/GO-2026-4986 -~~	() https://pkg.go.dev/vuln/GO-2026-4986 - Vendor Advisory
First Time		Golang Golang go
CWE		CWE-770
CPE		cpe:2.3:a:golang:go::::::::

08 May 2026, 15:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

07 May 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-07 20:16

Updated : 2026-05-13 15:10

NVD link : CVE-2026-39820

Mitre link : CVE-2026-39820

CVE.ORG link : CVE-2026-39820

JSON object : View

Products Affected

golang

go

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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