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Vulnerability details: VCID-u3ew-2n93-2fbe
Vulnerability ID VCID-u3ew-2n93-2fbe
Aliases CVE-2016-8609
GHSA-95m6-mjh3-58gm
Summary Improper Authentication in org.keycloak:keycloak-core It was found that the keycloak before 2.3.0 did not implement authentication flow correctly. An attacker could use this flaw to construct a phishing URL, from which he could hijack the user's session. This could lead to information disclosure, or permit further possible attacks.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-287 Improper Authentication
CWE-384 Session Fixation
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 3.7 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8609.json
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2016-8609
cvssv3.1 8.1 https://github.com/advisories/GHSA-95m6-mjh3-58gm
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-95m6-mjh3-58gm
generic_textual HIGH https://github.com/advisories/GHSA-95m6-mjh3-58gm
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2016-8609
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2016-8609
cvssv3.1 8.1 https://nvd.nist.gov/vuln/detail/CVE-2016-8609
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2016-8609
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2016-2945.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8609.json
https://api.first.org/data/v1/epss?cve=CVE-2016-8609
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8609
https://github.com/advisories/GHSA-95m6-mjh3-58gm
https://nvd.nist.gov/vuln/detail/CVE-2016-8609
http://www.securityfocus.com/bid/95070
http://www.securitytracker.com/id/1037460
1386729 https://bugzilla.redhat.com/show_bug.cgi?id=1386729
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:*:*:*:*:*:*:*:*
RHSA-2016:2945 https://access.redhat.com/errata/RHSA-2016:2945
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8609.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:R/S:U/C:H/I:H/A:N Found at https://github.com/advisories/GHSA-95m6-mjh3-58gm
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:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8609
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:R/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8609
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:R/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8609
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 0.37264
EPSS Score 0.00157
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:54:56.975401+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/10/GHSA-95m6-mjh3-58gm/GHSA-95m6-mjh3-58gm.json 37.0.0