EUVD-2026-28421
Out-of-bounds Write (CWE-787)
GHSA-qc64-m6c2-v4x7
5.9
CVSS 3.1
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CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None
Lifecycle Timeline
5
Analysis Generated
May 09, 2026 - 00:30 vuln.today
CVSS changed
May 08, 2026 - 22:22 NVD
5.9 (None)
5.9 (MEDIUM)
Patch available
May 07, 2026 - 21:02 EUVD
CVE Published
May 07, 2026 - 19:41 nvd
UNKNOWN (no severity yet)
CVE Published
May 07, 2026 - 19:41 nvd
MEDIUM 5.9
DescriptionNVD
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.
AnalysisAI
The Go toolchain's 'go tool pack' subcommand fails to sanitize output filenames when extracting archive files, allowing local attackers with user privileges and user interaction to write files to arbitrary filesystem locations. Affected versions include Go 1.26.0 through 1.26.2 and all versions before 1.25.10. …
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External POC / Exploit Code
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