CVE-2019-16276

HIGHEPSS 92th pctl

7.5

CVSS v3

NVD

Description

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

CWE-444

How to fix

Remediation Available

golangAmazon

Fixed in:0:1.9.4-3.amzn2.0.3

golang-binAmazon

Fixed in:0:1.9.4-3.amzn2.0.3

golang-docsAmazon

Fixed in:0:1.9.4-3.amzn2.0.3

golang-miscAmazon

Fixed in:0:1.9.4-3.amzn2.0.3

golang-srcAmazon

Fixed in:0:1.9.4-3.amzn2.0.3

golang-testsAmazon

Fixed in:0:1.9.4-3.amzn2.0.3

Go Programming LanguageWindows application

Affected:1.12.10Fixed in:1.12.10https://go.dev

Affected:1.13 1.13.1Fixed in:1.13.1https://go.dev

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

5.30%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory8

Other references4

Related Vulnerabilities

Other CWE-444 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-22536	Critical	10.0	98%	KEV	-
CVE-2025-61884	High	7.5	96%	KEV + Ransom	-
CVE-2020-9490	High	7.5	89%	-	Fix
CVE-2023-41265	Critical	9.6	88%	KEV + Ransom	-
CVE-2023-25690	Critical	9.8	85%	-	Fix
CVE-2022-32214	Medium	6.5	82%	-	Fix

Common questions

How do I fix CVE-2019-16276?

Published advisories record a fix for 7 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2019-16276 being actively exploited?

Not that we know of. CVE-2019-16276 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 5.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 92% of all scored CVEs.

How severe is CVE-2019-16276?

CVE-2019-16276 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2019-16276 affect?

Published advisories record a fix for golang (Amazon), golang-bin (Amazon), golang-docs (Amazon), golang-misc (Amazon), and 3 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.