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NVD Vulnerability Details :
CVE-2026-39817
Undergoing Analysis
More InfoOfficial Page
Source-security@golang.org
View Known Exploited Vulnerability (KEV) details
Published At-07 May, 2026 | 20:16
Updated At-08 May, 2026 | 22:16

The "go tool pack" subcommand (usually used only by the compiler as an internal tool with known-good inputs) does not sanitize output filenames. Extracting a malicious archive file with the "pack" subcommand can write files to arbitrary locations on the filesystem.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.9MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
Type: Secondary
Version: 3.1
Base score: 5.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
CPE Matches
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://go.dev/cl/767520security@golang.org
N/A
https://go.dev/issue/78778security@golang.org
N/A
https://groups.google.com/g/golang-announce/c/qcCIEXso47Msecurity@golang.org
N/A
https://pkg.go.dev/vuln/GO-2026-4979security@golang.org
N/A
Hyperlink: https://go.dev/cl/767520
Source: security@golang.org
Resource: N/A
Hyperlink: https://go.dev/issue/78778
Source: security@golang.org
Resource: N/A
Hyperlink: https://groups.google.com/g/golang-announce/c/qcCIEXso47M
Source: security@golang.org
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-4979
Source: security@golang.org
Resource: N/A
Change History
0Changes found
Details not found