Go: sets environmental variable based on user supplied Proxy request header
Published Jul 19, 2016
8.1
HIGHCVSS 3.1
EPSS 5.22%
Description
The net/http package in Go through 1.6 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.
Affected products
No data.
Configuration 1
- 23
- 24
Configuration 3
- 7.0
- 7.2
- 7.2
No data.
Red Hat Enterprise Linux 7
golang-0:1.6.3-1.el7_2.1
Fixed · RHSA-2016:1538
Red Hat Enterprise Linux 7
compat-sap-c++-5
Not affected
Red Hat Enterprise Linux 7
gcc
Not affected
Red Hat Enterprise Linux 7
gcc-libraries
Not affected
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools
golang
Will not fix
Red Hat OpenShift Enterprise 3
golang
Affected
Red Hat OpenStack Platform 8 (Liberty) Operational Tools
golang
Will not fix
Red Hat OpenStack Platform 9 (Mitaka) Operational Tools
golang
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | golang-0:1.6.3-1.el7_2.1 | Fixed | RHSA-2016:1538 |
| Red Hat Enterprise Linux 7 | compat-sap-c++-5 | Not affected | n/a |
| Red Hat Enterprise Linux 7 | gcc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | gcc-libraries | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools | golang | Will not fix | n/a |
| Red Hat OpenShift Enterprise 3 | golang | Affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) Operational Tools | golang | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) Operational Tools | golang | Not affected | n/a |
stdlib
Go
Introduced 0 Fixed 1.6.3
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | stdlib | 0 | 1.6.3 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.22% (0.05220) | 92.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.24% (0.05240) | 91.43th | v5 (v2026.06.15) |
| Apr 4, 2026 | 45.90% (0.45904) | 97.61th | v4 (v2025.03.14) |
| Mar 26, 2026 | 65.73% (0.65732) | 98.49th | v4 (v2025.03.14) |
| Feb 18, 2026 | 60.68% (0.60680) | 98.24th | v4 (v2025.03.14) |
| Dec 1, 2025 | 81.56% (0.81558) | 99.14th | v4 (v2025.03.14) |
| Apr 20, 2025 | 88.36% (0.88357) | 99.44th | v4 (v2025.03.14) |
| Mar 30, 2025 | 86.89% (0.86887) | 99.39th | v4 (v2025.03.14) |
| Mar 29, 2025 | 87.92% (0.87920) | 99.36th | v4 (v2025.03.14) |
| Mar 21, 2025 | 86.89% (0.86887) | 99.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 88.36% (0.88357) | 99.47th | v4 (v2025.03.14) |
| Dec 17, 2024 | 17.72% (0.17724) | 96.13th | v3 (v2023.03.01) |
| Sep 16, 2024 | 16.28% (0.16278) | 96.10th | v3 (v2023.03.01) |
| May 11, 2024 | 26.20% (0.26202) | 96.70th | v3 (v2023.03.01) |
| Nov 8, 2023 | 23.61% (0.23614) | 96.09th | v3 (v2023.03.01) |
| May 8, 2023 | 70.91% (0.70915) | 97.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 73.60% (0.73601) | 97.51th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
References (12)
- http://rhn.redhat.com/errata/RHSA-2016-1538.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.kb.cert.org/vuls/id/797896 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html x_refsource_CONFIRMThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-5386 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1353798 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03770en_us x_refsource_CONFIRMThird Party Advisory
- https://httpoxy.org/ x_refsource_MISCThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WGHKKCFP4PLVSWQKCM3FJJPEWB5ZNTU/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OR52UXGM6RKSCWF3KQMVZGVZVJ3WEESJ/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2016-5386
- https://www.cve.org/CVERecord?id=CVE-2016-5386
Change history (0)
No recorded changes yet.