CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute.

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. May 7, 2026 · NIST NVD

   Detected

   CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the attribute, the escaper would fail to similarly escape it, leading to XSS.

2. Jun 17, 2026 · NIST NVD

   Updated

   CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the attribute, the escaper would fail to similarly escape it, leading to XSS.

Affected

• cpe golang/goversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-39823

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-39823

  CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the attribute, the escaper would fail to similarly escape it, le

  nvd.nist.gov

References

• Patch · go.dev
• Issue Tracking · go.dev
• Release Notes · groups.google.com
• Vendor Advisory · pkg.go.dev