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 protec
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.
- Published
- Jul 18, 2016
- Updated
- Jun 16, 2026
- EPSS
- 5.2% · 92th percentile
- CWE
- CWE-284
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Report tools
Action score
34
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 5.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| oracle | linux | cpe:2.3:o:oracle:linux |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server eus | cpe:2.3:o:redhat:enterprise_linux_server_eus |
| golang | go | cpe:2.3:a:golang:go |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject fedora23
- fedoraproject fedora24
- golang go1.0 and later · before 1.6.3
- golang go1.7
- oracle linux7
- redhat enterprise linux server7.0
- redhat enterprise linux server aus7.2
- redhat enterprise linux server eus7.2
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Go | stdlib | before 1.6.3 | 1.6.3 |
| openSUSE:Tumbleweed | go | before 1.17-1.1 | 1.17-1.1 |
| openSUSE:Tumbleweed | go1.10 | before 1.10.8-8.2 | 1.10.8-8.2 |
| openSUSE:Tumbleweed | go1.11 | before 1.11.13-10.5 | 1.11.13-10.5 |
| openSUSE:Tumbleweed | go1.12 | before 1.12.17-4.8 | 1.12.17-4.8 |
| openSUSE:Tumbleweed | go1.4 | before 1.4.3-12.2 | 1.4.3-12.2 |
| openSUSE:Tumbleweed | go1.9 | before 1.9.7-11.2 | 1.9.7-11.2 |
| Red Hat:enterprise_linux:7::server | golang | before 0:1.6.3-1.el7_2.1 | 0:1.6.3-1.el7_2.1 |
| Red Hat:enterprise_linux:7::server | golang-bin | before 0:1.6.3-1.el7_2.1 | 0:1.6.3-1.el7_2.1 |
| Red Hat:enterprise_linux:7::server | golang-docs | before 0:1.6.3-1.el7_2.1 | 0:1.6.3-1.el7_2.1 |
| Red Hat:enterprise_linux:7::server | golang-misc | before 0:1.6.3-1.el7_2.1 | 0:1.6.3-1.el7_2.1 |
| Red Hat:enterprise_linux:7::server | golang-src | before 0:1.6.3-1.el7_2.1 | 0:1.6.3-1.el7_2.1 |
| Red Hat:enterprise_linux:7::server | golang-tests | before 0:1.6.3-1.el7_2.1 | 0:1.6.3-1.el7_2.1 |
| SUSE:Package Hub 12 | go | before 1.6.1-6.1 | 1.6.1-6.1 |
| SUSE:Package Hub 12 | go1.4 | before 1.4.3-6.1 | 1.4.3-6.1 |
Same product
fedoraproject: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-1111DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager i59Plan
- CVE-2024-24576Rusts's `std::process::Command` did not properly escape arguments of batch files on Windows46Plan
- CVE-2016-7167Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl 43Plan
- CVE-2016-2173org.springframework.core.serializer.DefaultDeserializer in Spring AMQP before 1.5.5 allows remote attackers to execute arbitrary code.41Plan
- CVE-2015-0278libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain privileges via unspecified ve41Plan
- CVE-2015-3145The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which allows remote attack41Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Go:stdlib | 1.6.3 | Package registry (OSV) |
| opensuse:go | 1.17-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:go1.10 | 1.10.8-8.2 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:go1.11 | 1.11.13-10.5 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:go1.12 | 1.12.17-4.8 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:go1.4 | 1.4.3-12.2 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:go1.9 | 1.9.7-11.2 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:golang | 0:1.6.3-1.el7_2.1 · Red Hat:enterprise_linux:7::server | Package registry (OSV) |
| red hat:golang-bin | 0:1.6.3-1.el7_2.1 · Red Hat:enterprise_linux:7::server | Package registry (OSV) |
| red hat:golang-docs | 0:1.6.3-1.el7_2.1 · Red Hat:enterprise_linux:7::server | Package registry (OSV) |
| red hat:golang-misc | 0:1.6.3-1.el7_2.1 · Red Hat:enterprise_linux:7::server | Package registry (OSV) |
| red hat:golang-src | 0:1.6.3-1.el7_2.1 · Red Hat:enterprise_linux:7::server | Package registry (OSV) |
| red hat:golang-tests | 0:1.6.3-1.el7_2.1 · Red Hat:enterprise_linux:7::server | Package registry (OSV) |
| suse:go | 1.6.1-6.1 · SUSE:Package Hub 12 | Package registry (OSV) |
| suse:go1.4 | 1.4.3-6.1 · SUSE:Package Hub 12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-284 · Improper Access ControlCVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Embedding Scripts within ScriptsCAPEC-19likelihood: High · High
- Malicious Logic InsertionCAPEC-441likelihood: Medium · High
- Modification of Windows Service ConfigurationCAPEC-478likelihood: Low · High
- Malicious Root CertificateCAPEC-479likelihood: Low · Low
- Intent SpoofCAPEC-502
- WebView ExposureCAPEC-503
- Data Injected During ConfigurationCAPEC-536likelihood: Low · High
- Incomplete Data Deletion in a Multi-Tenant EnvironmentCAPEC-546likelihood: Low · Medium
ATT&CK techniques
- RootkitT1014
- Obfuscated Files or Information: Embedded PayloadsT1027.009
- Boot or Logon Initialization ScriptsT1037
- Taint shared contentT1080
- Server Software Component: Terminal Services DLLT1505.005
- Pre-OS Boot:BootkitT1542.003
- Create or Modify System ProcessT1543
- Create or Modify System Process: Launch AgentT1543.001
- Create or Modify System Process:Windows ServiceT1543.003
- Create or Modify System Process: Launch DaemonT1543.004
- Event Triggered Execution:Change Default File AssociationT1546.001
- Event Triggered Execution:.bash_profile and .bashrcT1546.004
- Event Triggered Execution: Accessibility FeaturesT1546.008
- Event Triggered Execution: Installer PackagesT1546.016
- Boot or Logon Autostart ExecutionT1547
- Boot or Logon Autostart Execution:Kernel Modules and ExtensionsT1547.006
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- rhn.redhat.com/errata/RHSA-2016-1538.html
- www.kb.cert.org/vuls/id/797896
- www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- bugzilla.redhat.com/show_bug.cgi?id=1353798
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03770en_us
- httpoxy.org/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WGHKKCFP4PLVSWQKCM3FJJPEWB5ZNTU/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OR52UXGM6RKSCWF3KQMVZGVZVJ3WEESJ/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.