Search for vulnerabilities
Vulnerability details: VCID-vn8f-7dcr-pbcs
Vulnerability ID VCID-vn8f-7dcr-pbcs
Aliases CVE-2017-12165
GHSA-5gg7-5wv8-4gcj
Summary Undertow Request Smuggling vulnerability It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause possible http request smuggling.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 2.6 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-12165.json
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
epss 0.01096 https://api.first.org/data/v1/epss?cve=CVE-2017-12165
cvssv3.1 7.5 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12165
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12165
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-5gg7-5wv8-4gcj
cvssv3.1 7.5 https://github.com/undertow-io/undertow
generic_textual HIGH https://github.com/undertow-io/undertow
cvssv3.1 7.5 https://github.com/undertow-io/undertow/commit/1e72647818c9fb31b693a953b1ae595a6c82eb7f
generic_textual HIGH https://github.com/undertow-io/undertow/commit/1e72647818c9fb31b693a953b1ae595a6c82eb7f
cvssv3.1 7.5 https://github.com/undertow-io/undertow/commit/5b008b7ac312c6cdb76679ff58c43620bb79d44f
generic_textual HIGH https://github.com/undertow-io/undertow/commit/5b008b7ac312c6cdb76679ff58c43620bb79d44f
cvssv3.1 7.5 https://github.com/undertow-io/undertow/commit/691440ee58259fba76711b60d56dde6679808bdc
generic_textual HIGH https://github.com/undertow-io/undertow/commit/691440ee58259fba76711b60d56dde6679808bdc
cvssv3.1 7.5 https://issues.redhat.com/browse/UNDERTOW-1251
generic_textual HIGH https://issues.redhat.com/browse/UNDERTOW-1251
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2017-12165
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2017-12165
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2017-12165
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2017-12165
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2017:3454
https://access.redhat.com/errata/RHSA-2017:3455
https://access.redhat.com/errata/RHSA-2017:3456
https://access.redhat.com/errata/RHSA-2017:3458
https://access.redhat.com/errata/RHSA-2018:0002
https://access.redhat.com/errata/RHSA-2018:0003
https://access.redhat.com/errata/RHSA-2018:0004
https://access.redhat.com/errata/RHSA-2018:0005
https://access.redhat.com/errata/RHSA-2018:1322
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-12165.json
https://api.first.org/data/v1/epss?cve=CVE-2017-12165
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12165
https://github.com/undertow-io/undertow
https://github.com/undertow-io/undertow/commit/1e72647818c9fb31b693a953b1ae595a6c82eb7f
https://github.com/undertow-io/undertow/commit/5b008b7ac312c6cdb76679ff58c43620bb79d44f
https://github.com/undertow-io/undertow/commit/691440ee58259fba76711b60d56dde6679808bdc
https://issues.redhat.com/browse/UNDERTOW-1251
https://nvd.nist.gov/vuln/detail/CVE-2017-12165
1490301 https://bugzilla.redhat.com/show_bug.cgi?id=1490301
885338 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=885338
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:undertow:2.0.0:alpha_1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:undertow:2.0.0:alpha_1:*:*:*:*:*:*
GHSA-5gg7-5wv8-4gcj https://github.com/advisories/GHSA-5gg7-5wv8-4gcj
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-12165.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12165
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/undertow-io/undertow
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/undertow-io/undertow/commit/1e72647818c9fb31b693a953b1ae595a6c82eb7f
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/undertow-io/undertow/commit/5b008b7ac312c6cdb76679ff58c43620bb79d44f
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/undertow-io/undertow/commit/691440ee58259fba76711b60d56dde6679808bdc
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://issues.redhat.com/browse/UNDERTOW-1251
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-12165
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-12165
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-12165
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.7707
EPSS Score 0.01096
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:16:20.448825+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-5gg7-5wv8-4gcj/GHSA-5gg7-5wv8-4gcj.json 37.0.0