CVE-2018-17846
x/net/html Vulnerable to DoS During HTML Parsing
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
- Record
CVE-2018-17846- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-835
- Updated
- 2026-11-02
CVE List No score
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
- Record
CVE-2018-17846- Updated
- 2026-11-02
EUVDEUVD-2023-2602 No score
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
- Record
EUVD-2023-2602- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vfw5-hrgq-h5wf
x/net/html Vulnerable to DoS During HTML Parsing
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
- Record
GHSA-vfw5-hrgq-h5wf- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
OSVBELL-CVE-2018-17846
CVE-2018-17846 does not affect BellSoft software
- Record
BELL-CVE-2018-17846- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-vfw5-hrgq-h5wf
x/net/html Vulnerable to DoS During HTML Parsing
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
- Record
GHSA-vfw5-hrgq-h5wf- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-17846
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.
- Record
UBUNTU-CVE-2018-17846- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGO-2020-0014 No score
Infinite loop due to improper handling of "select" tags in golang.org/x/net/html
html.Parse does not properly handle "select" tags, which can lead to an infinite loop. If parsing user supplied input, this may be used as a denial of service vector.
- Record
GO-2020-0014- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
golang.org/x/netGo |
before 0.0.0-20190125091013-d26f9f9a57f3 | 0.0.0-20190125091013-d26f9f9a57f3 |
golang-golang-x-net-devUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.0+git20150226.3d87fd6-30.0+git20151007.b846920+dfsg-11:0.0+git20150817.66f0418-11:0.0+git20160110.4fd4a9f-11:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm11:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm2 |
None known |
golang-golang-x-net-devUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:0.0+git20170629.c81e7f2+dfsg-1ubuntu11:0.0+git20170629.c81e7f2+dfsg-1ubuntu21:0.0+git20170629.c81e7f2+dfsg-21:0.0+git20170629.c81e7f2+dfsg-2ubuntu0.1~esm11:0.0+git20170629.c81e7f2+dfsg-2ubuntu0.1~esm21:0.0+git20170629.c81e7f2+dfsg-2ubuntu0.1~esm3 |
None known |
golang-golang-x-net-devUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1:0.0+git20190811.74dc4d7+dfsg-11:0.0+git20190811.74dc4d7+dfsg-1ubuntu0.1~esm11:0.0+git20190811.74dc4d7+dfsg-1ubuntu0.1~esm21:0.0+git20190811.74dc4d7+dfsg-1ubuntu0.1~esm3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-17846 is a high vulnerability (CVSS 7.5) in Golang Net, published October 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.51%, the 84th percentile. Fixed in golang.org/x/net 0.0.0-20190125091013-d26f9f9a57f3.
References
github.com/golang/go/issues/27842
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LREEWY6KNLHRWFZ7OT4HVLMVVCGGUHON
nvd.nist.gov/vuln/detail/CVE-2018-17846
go-review.googlesource.com/c/137275
go.dev/issue/27842
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go.googlesource.com/net/+/d26f9f9a57f3fab6a695bec0d84433c2c50f8bbf
pkg.go.dev/vuln/GO-2020-0014
docs.bell-sw.com/security/cves/CVE-2018-17846
ubuntu.com/security/CVE-2018-17846
cve.org/CVERecord?id=CVE-2018-17846