CVE-2016-8629
Moderate severity vulnerability that affects org.keycloak:keycloak-core
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2016-8629- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.5 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:P - Weakness
- CWE-284, CWE-264
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2016-8629- Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2018-0534 No score
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.
- Record
EUVD-2018-0534- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-778x-2mqv-w6xw No score
Moderate severity vulnerability that affects org.keycloak:keycloak-core
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.
- Record
GHSA-778x-2mqv-w6xw- Weakness
- CWE-284
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2016-8629- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVRHSA-2017:0872
Red Hat Security Advisory: Red Hat Single Sign-On 7.1 update on RHEL 6
- Record
RHSA-2017:0872- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVRHSA-2017:0873
Red Hat Security Advisory: Red Hat Single Sign-On 7.1 update on RHEL 7
- Record
RHSA-2017:0873- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-778x-2mqv-w6xw No score
Moderate severity vulnerability that affects org.keycloak:keycloak-core
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.
- Record
GHSA-778x-2mqv-w6xw- Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.keycloak:keycloak-coreMaven |
before 2.4.0 | 2.4.0 |
org.keycloak:keycloak-coreMaven |
before 2.4.0, plus listed versions 1.0-alpha-11.0-alpha-1-120620131.0-alpha-21.0-alpha-31.0-alpha-4 Show 45 moreShow less1.0-beta-11.0-beta-1-201505211.0-beta-1-201505231.0-beta-21.0-beta-31.0-beta-41.0-final1.0-rc-11.0-rc-21.0.1.Final1.0.2.Final1.0.3.Final1.0.4.Final1.0.5.Final1.1.0.Beta11.1.0.Beta21.1.0.Final1.1.1.Final1.2.0.Beta11.2.0.CR11.2.0.Final1.3.0.Final1.3.1.Final1.4.0.Final1.5.0-Final1.5.0.Final1.5.1.Final1.6.0.Final1.6.1.Final1.7.0.CR11.7.0.Final1.8.0.Alpha11.8.0.CR11.8.0.CR21.8.0.CR31.8.0.Final1.8.1.Final1.9.0.CR11.9.0.Final1.9.1.Final1.9.2.Final1.9.3.Final1.9.4.Final1.9.5.Final1.9.7.Final |
2.4.0 |
rh-sso7Red Hat:red_hat_single_sign_on:7::el6 |
before 0:1-2.jbcs.el6 | 0:1-2.jbcs.el6 |
rh-sso7-freemarkerRed Hat:red_hat_single_sign_on:7::el6 |
before 0:2.3.23-1.redhat_2.2.jbcs.el6 | 0:2.3.23-1.redhat_2.2.jbcs.el6 |
rh-sso7-javapackages-toolsRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.4.1-5.15.3.jbcs.el6 | 0:3.4.1-5.15.3.jbcs.el6 |
rh-sso7-keycloakRed Hat:red_hat_single_sign_on:7::el6 |
before 0:2.5.5-2.Final_redhat_1.1.jbcs.el6 | 0:2.5.5-2.Final_redhat_1.1.jbcs.el6 |
rh-sso7-keycloak-serverRed Hat:red_hat_single_sign_on:7::el6 |
before 0:2.5.5-2.Final_redhat_1.1.jbcs.el6 | 0:2.5.5-2.Final_redhat_1.1.jbcs.el6 |
rh-sso7-libunix-dbus-javaRed Hat:red_hat_single_sign_on:7::el6 |
before 0:0.8.0-2.jbcs.el6 | 0:0.8.0-2.jbcs.el6 |
rh-sso7-libunix-dbus-java-debuginfoRed Hat:red_hat_single_sign_on:7::el6 |
before 0:0.8.0-2.jbcs.el6 | 0:0.8.0-2.jbcs.el6 |
rh-sso7-libunix-dbus-java-develRed Hat:red_hat_single_sign_on:7::el6 |
before 0:0.8.0-2.jbcs.el6 | 0:0.8.0-2.jbcs.el6 |
Show 26 moreShow less
| Package | Affected | Fixed |
|---|---|---|
rh-sso7-liquibaseRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.4.1-2.redhat_2.1.jbcs.el6 | 0:3.4.1-2.redhat_2.1.jbcs.el6 |
rh-sso7-liquibase-coreRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.4.1-2.redhat_2.1.jbcs.el6 | 0:3.4.1-2.redhat_2.1.jbcs.el6 |
rh-sso7-python-javapackagesRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.4.1-5.15.3.jbcs.el6 | 0:3.4.1-5.15.3.jbcs.el6 |
rh-sso7-runtimeRed Hat:red_hat_single_sign_on:7::el6 |
before 0:1-2.jbcs.el6 | 0:1-2.jbcs.el6 |
rh-sso7-twitter4jRed Hat:red_hat_single_sign_on:7::el6 |
before 0:4.0.4-1.redhat_3.1.jbcs.el6 | 0:4.0.4-1.redhat_3.1.jbcs.el6 |
rh-sso7-twitter4j-coreRed Hat:red_hat_single_sign_on:7::el6 |
before 0:4.0.4-1.redhat_3.1.jbcs.el6 | 0:4.0.4-1.redhat_3.1.jbcs.el6 |
rh-sso7-zxingRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.2.1-1.redhat_4.1.jbcs.el6 | 0:3.2.1-1.redhat_4.1.jbcs.el6 |
rh-sso7-zxing-coreRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.2.1-1.redhat_4.1.jbcs.el6 | 0:3.2.1-1.redhat_4.1.jbcs.el6 |
rh-sso7-zxing-javaseRed Hat:red_hat_single_sign_on:7::el6 |
before 0:3.2.1-1.redhat_4.1.jbcs.el6 | 0:3.2.1-1.redhat_4.1.jbcs.el6 |
rh-sso7Red Hat:red_hat_single_sign_on:7::el7 |
before 0:1-2.jbcs.el7 | 0:1-2.jbcs.el7 |
rh-sso7-freemarkerRed Hat:red_hat_single_sign_on:7::el7 |
before 0:2.3.23-1.redhat_2.2.jbcs.el7 | 0:2.3.23-1.redhat_2.2.jbcs.el7 |
rh-sso7-javapackages-toolsRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.4.1-5.15.3.jbcs.el7 | 0:3.4.1-5.15.3.jbcs.el7 |
rh-sso7-keycloakRed Hat:red_hat_single_sign_on:7::el7 |
before 0:2.5.5-2.Final_redhat_1.1.jbcs.el7 | 0:2.5.5-2.Final_redhat_1.1.jbcs.el7 |
rh-sso7-keycloak-serverRed Hat:red_hat_single_sign_on:7::el7 |
before 0:2.5.5-2.Final_redhat_1.1.jbcs.el7 | 0:2.5.5-2.Final_redhat_1.1.jbcs.el7 |
rh-sso7-libunix-dbus-javaRed Hat:red_hat_single_sign_on:7::el7 |
before 0:0.8.0-2.jbcs.el7 | 0:0.8.0-2.jbcs.el7 |
rh-sso7-libunix-dbus-java-debuginfoRed Hat:red_hat_single_sign_on:7::el7 |
before 0:0.8.0-2.jbcs.el7 | 0:0.8.0-2.jbcs.el7 |
rh-sso7-libunix-dbus-java-develRed Hat:red_hat_single_sign_on:7::el7 |
before 0:0.8.0-2.jbcs.el7 | 0:0.8.0-2.jbcs.el7 |
rh-sso7-liquibaseRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.4.1-2.redhat_2.1.jbcs.el7 | 0:3.4.1-2.redhat_2.1.jbcs.el7 |
rh-sso7-liquibase-coreRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.4.1-2.redhat_2.1.jbcs.el7 | 0:3.4.1-2.redhat_2.1.jbcs.el7 |
rh-sso7-python-javapackagesRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.4.1-5.15.3.jbcs.el7 | 0:3.4.1-5.15.3.jbcs.el7 |
rh-sso7-runtimeRed Hat:red_hat_single_sign_on:7::el7 |
before 0:1-2.jbcs.el7 | 0:1-2.jbcs.el7 |
rh-sso7-twitter4jRed Hat:red_hat_single_sign_on:7::el7 |
before 0:4.0.4-1.redhat_3.1.jbcs.el7 | 0:4.0.4-1.redhat_3.1.jbcs.el7 |
rh-sso7-twitter4j-coreRed Hat:red_hat_single_sign_on:7::el7 |
before 0:4.0.4-1.redhat_3.1.jbcs.el7 | 0:4.0.4-1.redhat_3.1.jbcs.el7 |
rh-sso7-zxingRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.2.1-1.redhat_4.1.jbcs.el7 | 0:3.2.1-1.redhat_4.1.jbcs.el7 |
rh-sso7-zxing-coreRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.2.1-1.redhat_4.1.jbcs.el7 | 0:3.2.1-1.redhat_4.1.jbcs.el7 |
rh-sso7-zxing-javaseRed Hat:red_hat_single_sign_on:7::el7 |
before 0:3.2.1-1.redhat_4.1.jbcs.el7 | 0:3.2.1-1.redhat_4.1.jbcs.el7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-8629 is a medium vulnerability (CVSS 6.5) in Keycloak, published March 12, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.90%, the 79th percentile. Fixed in org.keycloak:keycloak-core 2.4.0.
References
rhn.redhat.com/errata/RHSA-2017-0876.html
securitytracker.com/id/1038180
bugzilla.redhat.com/show_bug.cgi?id=1388988
securityfocus.com/bid/97392
access.redhat.com/errata/RHSA-2017:0873
Show 18 moreShow less
nvd.nist.gov/vuln/detail/CVE-2016-8629
github.com/advisories/GHSA-778x-2mqv-w6xw
issues.redhat.com/browse/RHSSO-427
security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_0872.json
cve.org/CVERecord?id=CVE-2016-8629
Left out here: 11 versions. The JSON record has them.