CVE detail
CVE-2026-39817
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
5 source links · newest first
Information published.
vendormsrc.microsoft.comMay 10, 2026, 8:02 AM- https://pkg.go.dev/vuln/GO-2026-4979pkg.go.dev
No excerpt available.
Exploitpkg.go.devMay 7, 2026, 8:16 PM - https://groups.google.com/g/golang-announce/c/qcCIEXso47Mgroups.google.com
No excerpt available.
Patchgroups.google.comMay 7, 2026, 8:16 PM No excerpt available.
Vendor Advisorygo.devMay 7, 2026, 8:16 PM- https://go.dev/cl/767520go.dev
No excerpt available.
Vendor Advisorygo.devMay 7, 2026, 8:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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