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Vulnerability details: VCID-25s7-ksww-6qa2
Vulnerability ID VCID-25s7-ksww-6qa2
Aliases CVE-2019-3868
GHSA-gc52-xj6p-9pxp
Summary Exposure of Sensitive Information to an Unauthorized Actor in Keycloak Keycloak up to version 6.0.0 allows the end user token (access or id token JWT) to be used as the session cookie for browser sessions for OIDC. As a result an attacker with access to service provider backend could hijack user?s browser session.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
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
cvssv3.1 3.8 https://access.redhat.com/errata/RHSA-2019:1140
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2019:1140
cvssv3.1 3.8 https://access.redhat.com/errata/RHSA-2019:2998
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2019:2998
cvssv3 3.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-3868.json
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
epss 0.00291 https://api.first.org/data/v1/epss?cve=CVE-2019-3868
cvssv3.1 3.8 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3868
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3868
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-gc52-xj6p-9pxp
cvssv2 5.5 https://nvd.nist.gov/vuln/detail/CVE-2019-3868
cvssv3 3.8 https://nvd.nist.gov/vuln/detail/CVE-2019-3868
cvssv3.1 3.8 https://nvd.nist.gov/vuln/detail/CVE-2019-3868
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2019-3868
cvssv3.1 3.8 http://www.securityfocus.com/bid/108061
generic_textual MODERATE http://www.securityfocus.com/bid/108061
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2019:1140
https://access.redhat.com/errata/RHSA-2019:2998
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-3868.json
https://api.first.org/data/v1/epss?cve=CVE-2019-3868
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3868
https://nvd.nist.gov/vuln/detail/CVE-2019-3868
http://www.securityfocus.com/bid/108061
1679144 https://bugzilla.redhat.com/show_bug.cgi?id=1679144
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:*:*:*:*:*:*:*:*
GHSA-gc52-xj6p-9pxp https://github.com/advisories/GHSA-gc52-xj6p-9pxp
RHSA-2019:0856 https://access.redhat.com/errata/RHSA-2019:0856
RHSA-2019:0857 https://access.redhat.com/errata/RHSA-2019:0857
RHSA-2019:0868 https://access.redhat.com/errata/RHSA-2019:0868
RHSA-2020:2366 https://access.redhat.com/errata/RHSA-2020:2366
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2019:1140
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:H/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/errata/RHSA-2019:2998
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:H/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-3868.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:H/UI:N/S:U/C:L/I:L/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3868
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-2019-3868
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:H/UI:N/S:U/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-3868
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:H/UI:N/S:U/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-3868
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:H/UI:N/S:U/C:L/I:L/A:N Found at http://www.securityfocus.com/bid/108061
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 0.5217
EPSS Score 0.00291
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:57:07.270427+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/04/GHSA-gc52-xj6p-9pxp/GHSA-gc52-xj6p-9pxp.json 37.0.0