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CVE-2019-16276

HIGH severity · CVSS 7.5 · CWE-444
7.5CVSS HIGH

Summary

Go before 1.12.10 and 1.13.x before 1.13.1 allow HTTP Request Smuggling.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)8%

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products we track (3)

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://github.com/golang/go/issues/34540 ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC