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CVE-2019-9741

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker...

6.1 MediumFix available

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

2.20%Up 0.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.1

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
CVE-2019-9741
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-93
Updated
2026-11-02
CVE List No score

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
CVE-2019-9741
Updated
2026-11-02
EUVDEUVD-2019-19104 No score

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
EUVD-2019-19104
Updated
2026-11-03
GitHub AdvisoriesGHSA-46v6-2c7g-7hfg 6.1

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker...

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
GHSA-46v6-2c7g-7hfg
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-93
Updated
2026-11-02
OSVAZL-38599 6.1

CVE-2019-9741 affecting package python-tensorboard for versions less than 2.16.2-1

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
AZL-38599
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVBELL-CVE-2019-9741 6.1

CVE-2019-9741 does not affect BellSoft software

Record
BELL-CVE-2019-9741
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
Show 4 moreShow less
OSV 6.1

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
CVE-2019-9741
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVRHSA-2019:1300 5.3

Red Hat Security Advisory: go-toolset-1.11-golang security update

Record
RHSA-2019:1300
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVRHSA-2019:1519 5.3

Red Hat Security Advisory: go-toolset:rhel8 security update

Record
RHSA-2019:1519
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2019-9741 6.1

An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.

Record
UBUNTU-CVE-2019-9741
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
python-tensorboard
Azure Linux:3
 before 2.16.2-1
2.16.2-1
golang
Debian:8
 before 2:1.3.3-1+deb8u2, plus listed versions
2:1.3.3-12:1.3.3-1+deb8u1
2:1.3.3-1+deb8u2
golang-1.7
Debian:9
From an advisory covering 7 CVEs
 before 1.7.4-2+deb9u3, plus listed versions
1.7.4-21.7.4-2+deb9u11.7.4-2+deb9u2
1.7.4-2+deb9u3
golang-1.8
Debian:9
From an advisory covering 7 CVEs
 before 1.8.1-1+deb9u3, plus listed versions
1.8.1-11.8.1-1+deb9u11.8.1-1+deb9u2
1.8.1-1+deb9u3
go-toolset-1.11
Red Hat:devtools:2019
 before 0:1.11.5-2.el7
0:1.11.5-2.el7
go-toolset-1.11-build
Red Hat:devtools:2019
 before 0:1.11.5-2.el7
0:1.11.5-2.el7
go-toolset-1.11-golang
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
go-toolset-1.11-golang-bin
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
go-toolset-1.11-golang-docs
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
go-toolset-1.11-golang-misc
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
Show 19 moreShow less
Affected packages
PackageAffectedFixed
go-toolset-1.11-golang-src
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
go-toolset-1.11-golang-tests
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
go-toolset-1.11-runtime
Red Hat:devtools:2019
 before 0:1.11.5-2.el7
0:1.11.5-2.el7
go-toolset-1.11-scldevel
Red Hat:devtools:2019
 before 0:1.11.5-2.el7
0:1.11.5-2.el7
go-toolset-1.11-golang-race
Red Hat:devtools:2019
 before 0:1.11.5-3.el7
0:1.11.5-3.el7
go-toolset
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-bin
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-docs
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-misc
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-race
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-src
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-tests
Red Hat:enterprise_linux:8::appstream
 before 0:1.11.5-2.module+el8.0.0+3175+261ae921
0:1.11.5-2.module+el8.0.0+3175+261ae921
golang-1.10
Ubuntu:14.04:LTS
 All versions, plus listed versions
1.10.4-2ubuntu1~14.04.1
 None known
golang-1.10
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.10.4-2ubuntu1~16.04.11.10.4-2ubuntu1~16.04.2
 None known
golang-1.6
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.6-0ubuntu11.6-0ubuntu21.6-0ubuntu31.6-0ubuntu41.6-0ubuntu5
Show 5 moreShow less
1.6.1-0ubuntu11.6.2-0ubuntu5~16.041.6.2-0ubuntu5~16.04.21.6.2-0ubuntu5~16.04.31.6.2-0ubuntu5~16.04.4
 None known
golang-1.10
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.10~rc1-11.10~rc1-1ubuntu11.10~rc1-2ubuntu11.10~rc2-1ubuntu11.10-1ubuntu11.10.1-1ubuntu21.10.4-2ubuntu1~18.04.11.10.4-2ubuntu1~18.04.2
 None known
golang-1.8
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.8.3-2ubuntu11.8.3-2ubuntu1.18.04.1
 None known
golang-1.9
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.9.1-2ubuntu11.9.2-1ubuntu11.9.2-3ubuntu11.9.3-1ubuntu11.9.4-1ubuntu1
 None known

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-9741 is a medium vulnerability (CVSS 6.1) in Golang Go, published March 13, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.20%, the 82nd percentile. Fixed in python-tensorboard 2.16.2-1.

References

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