Search for vulnerabilities
Vulnerability details: VCID-cnju-ee9e-d3c1
Vulnerability ID VCID-cnju-ee9e-d3c1
Aliases CVE-2019-10201
GHSA-4fgq-gq9g-3rw7
Summary Improper Verification of Cryptographic Signature in keycloak It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.
Status Published
Exploitability 0.5
Weighted Severity 7.3
Risk 3.6
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-347 Improper Verification of Cryptographic Signature
CWE-287 Improper Authentication
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 8.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-10201.json
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
epss 0.00143 https://api.first.org/data/v1/epss?cve=CVE-2019-10201
cvssv3.1 8.1 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-4fgq-gq9g-3rw7
cvssv2 5.5 https://nvd.nist.gov/vuln/detail/CVE-2019-10201
cvssv3.1 8.1 https://nvd.nist.gov/vuln/detail/CVE-2019-10201
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2019-10201
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-10201.json
https://api.first.org/data/v1/epss?cve=CVE-2019-10201
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201
https://nvd.nist.gov/vuln/detail/CVE-2019-10201
1728609 https://bugzilla.redhat.com/show_bug.cgi?id=1728609
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:7.3.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:single_sign-on:7.3.3:*:*:*:*:*:*:*
GHSA-4fgq-gq9g-3rw7 https://github.com/advisories/GHSA-4fgq-gq9g-3rw7
RHSA-2019:2483 https://access.redhat.com/errata/RHSA-2019:2483
RHSA-2020:2067 https://access.redhat.com/errata/RHSA-2020:2067
RHSA-2020:2366 https://access.redhat.com/errata/RHSA-2020:2366
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-10201.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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201
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:S/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-10201
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-10201
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 0.353
EPSS Score 0.00143
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:57:10.867627+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/09/GHSA-4fgq-gq9g-3rw7/GHSA-4fgq-gq9g-3rw7.json 37.0.0