Go before 1.12.10 and 1.13.x before 1.13.1 allow HTTP Request Smuggling.
CVE-2019-16276
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 9.8%, top 7% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 91.4%
- KEV
- Not listed
Published
September 30, 2019
Last Modified
November 21, 2024
References (26)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00043.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00044.html
- cve@mitrehttps://access.redhat.com/errata/RHSA-2020:0101
- cve@mitrehttps://access.redhat.com/errata/RHSA-2020:0329
- cve@mitrehttps://access.redhat.com/errata/RHSA-2020:0652
- cve@mitrehttps://github.com/golang/go/issues/34540
- cve@mitrehttps://groups.google.com/forum/#%21msg/golang-announce/cszieYyuL9Q/g4Z7pKaqAgAJ
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2021/03/msg00014.html
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2021/03/msg00015.html
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LULL72EUUKIY4NWDZVJVN2LIB4MXHS5P/
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7GMJ3VXF5RXK2C7CL66KJ6XOOTOL5BJ/
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q5MD2F7ATWSTB45ZJIPJHBAAHVRGRAKG/
- cve@mitrehttps://security.netapp.com/advisory/ntap-20191122-0004/
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00043.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00044.html
Vendor Advisories for CVE-2019-16276(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | openshift4/ose-installer-artifacts:v4.2.21-202002240343 | 2020-03-05 | redhat |
| redhat | go-toolset:rhel8-8010020191220185136.0ed30617 | 2020-02-04 | redhat |
| redhat | openshift4/ose-telemeter:v4.3.0-202001211731 | 2020-01-23 | redhat |
| redhat | go-toolset-1.12-golang-0:1.12.12-4.el7 | 2020-01-14 | redhat |
| redhat | openshift4/ose-tests:v4.2.4-201911072324 | 2019-11-13 | redhat |
| redhat | openshift-enterprise-autoheal-0:4.2.4-201911010432.git.1.0b5cd44.el7 | 2019-11-13 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| stdlib | — | 1.13.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(6)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHBA-2019:3303MODERATE2019-09-25
RHBA-2019:3303 — Moderate
- Red HatRHBA-2019:3304MODERATE2019-09-25
RHBA-2019:3304 — Moderate
- Red HatRHBA-2020:0062MODERATE2019-09-25
RHBA-2020:0062 — Moderate
- Red HatRHSA-2020:0101MODERATE2019-09-25
RHSA-2020:0101 — Moderate
- Red HatRHSA-2020:0329MODERATE2019-09-25
RHSA-2020:0329 — Moderate
- Red HatRHSA-2020:0652MODERATE2019-09-25
RHSA-2020:0652 — Moderate
Data Freshness Timeline
(refreshed 7× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-09 19:06 UTCEPSS rescore
- 2026-07-08 15:11 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-02 20:35 UTCOSV refresh
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-29 14:03 UTCEPSS rescore
- 2026-06-28 14:04 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
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- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 17:13 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 13:19 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:35 UTCEG score recompute
- 2026-05-27 13:35 UTCVendor advisory
- 2026-05-27 13:35 UTCGHSA enrichment
Frequently asked(5)
What is CVE-2019-16276?
When was CVE-2019-16276 disclosed?
Is CVE-2019-16276 actively exploited?
What is the CVSS score of CVE-2019-16276?
How do I remediate CVE-2019-16276?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-16276
Is Your Infrastructure Affected by CVE-2019-16276?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.