VulnSocial

CVE-2026-39817Disclosure(golang / go)

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.0/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • go

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
golang
Products
go

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-07: 1Technical Details · 2026-05-07: 105-07
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-39817 Arbitrary File Write Vulnerability in Go Tool Pack Subcommand via Malicious Archives https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-39817

    Post summary

    A new vulnerability, CVE-2026-39817, describing an arbitrary file write in Go Tool Pack's subcommand via malicious archives, has been disclosed on Vulmon.

    0000059
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appgolanggo---

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