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Vulnerability details: VCID-4vqy-eayd-gqdq
Vulnerability ID VCID-4vqy-eayd-gqdq
Aliases CVE-2016-8629
GHSA-778x-2mqv-w6xw
Summary Red Hat Keycloak before version 2.4.0 did not correctly check permissions when handling service account user deletion requests sent to the rest server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-284 Improper Access Control
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-264 Permissions, Privileges, and Access Controls
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2017-0876.html
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2017:0872
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2017:0873
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8629.json
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2016-8629
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=1388988
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-778x-2mqv-w6xw
generic_textual MODERATE https://github.com/advisories/GHSA-778x-2mqv-w6xw
cvssv2 5.5 https://nvd.nist.gov/vuln/detail/CVE-2016-8629
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2016-8629
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2016-8629
generic_textual MODERATE http://www.securityfocus.com/bid/97392
generic_textual MODERATE http://www.securitytracker.com/id/1038180
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2017-0876.html
https://access.redhat.com/errata/RHSA-2017:0872
https://access.redhat.com/errata/RHSA-2017:0873
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8629.json
https://api.first.org/data/v1/epss?cve=CVE-2016-8629
https://bugzilla.redhat.com/show_bug.cgi?id=1388988
https://github.com/advisories/GHSA-778x-2mqv-w6xw
https://github.com/keycloak/keycloak/commit/a78cfa4b2ca979a1981fb371cfdf2c7212f7b6e2
https://nvd.nist.gov/vuln/detail/CVE-2016-8629
http://www.securityfocus.com/bid/97392
http://www.securitytracker.com/id/1038180
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-2017:0876 https://access.redhat.com/errata/RHSA-2017:0876
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8629.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: AV:N/AC:L/Au:S/C:N/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8629
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:L/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8629
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 0.62859
EPSS Score 0.00454
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T07:58:41.940728+00:00 ProjectKB MSRImporter Import https://raw.githubusercontent.com/SAP/project-kb/master/MSR2019/dataset/vulas_db_msr2019_release.csv 37.0.0