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CVE-2026-97039VulnerabilityPublished

Microsoft · Flag sanitization bypass via "#cgo pkg-config:" directives in cmd/go

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-97039· High

Not known to be exploited : upgrade to 1.27.4 or 1.26.11 soon.

Data as of 13 Nov 2026, 10:32 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 1.27.4, 1.26.11

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade cmd/go to 1.27.4 or 1.26.11.

Affected software

ProductAffectedFixed in
Go toolchaincmd/goAffected
  • >=1.27.0-0 <1.27.4
Fixed in
  • 1.27.4
Go toolchaincmd/goAffected
  • <1.26.11
Fixed in
  • 1.26.11
Gocmd/gopkg:golang/cmd/goOther threatsAffected
  • <1.26.11
  • >=1.27.0-0 <1.27.4
Fixed in
  • 1.26.11
  • 1.27.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

CVE-2026-97039 is a vulnerability involving flag sanitization bypass via "#cgo pkg-config:" directives in the cmd/go tool. The affected product is Microsoft-related software version 3.0. No CVSS score or detailed impact information is provided.

References

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