keycloak: user deletion via incorrect permissions check
Published Mar 12, 2018
6.5
MEDIUMCVSS 3.0
EPSS 1.90%
Description
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.
Affected products
-
- Version 2.4.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Red Hat, Inc. | Keycloak | n/a |
|
Configuration 2
- 7.1
- 7.2
Running on/with
- 6.0
- 7.0
No data.
Red Hat Single Sign-On 7.1
n/a
Fixed · RHSA-2017:0876
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-0:1-2.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-freemarker-0:2.3.23-1.redhat_2.2.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-javapackages-tools-0:3.4.1-5.15.3.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-keycloak-0:2.5.5-2.Final_redhat_1.1.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-libunix-dbus-java-0:0.8.0-2.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-liquibase-0:3.4.1-2.redhat_2.1.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-twitter4j-0:4.0.4-1.redhat_3.1.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-zxing-0:3.2.1-1.redhat_4.1.jbcs.el6
Fixed · RHSA-2017:0872
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-0:1-2.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-freemarker-0:2.3.23-1.redhat_2.2.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-javapackages-tools-0:3.4.1-5.15.3.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-keycloak-0:2.5.5-2.Final_redhat_1.1.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-libunix-dbus-java-0:0.8.0-2.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-liquibase-0:3.4.1-2.redhat_2.1.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-twitter4j-0:4.0.4-1.redhat_3.1.jbcs.el7
Fixed · RHSA-2017:0873
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-zxing-0:3.2.1-1.redhat_4.1.jbcs.el7
Fixed · RHSA-2017:0873
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Single Sign-On 7.1 | n/a | Fixed | RHSA-2017:0876 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-0:1-2.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-freemarker-0:2.3.23-1.redhat_2.2.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-javapackages-tools-0:3.4.1-5.15.3.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-keycloak-0:2.5.5-2.Final_redhat_1.1.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-libunix-dbus-java-0:0.8.0-2.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-liquibase-0:3.4.1-2.redhat_2.1.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-twitter4j-0:4.0.4-1.redhat_3.1.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-zxing-0:3.2.1-1.redhat_4.1.jbcs.el6 | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-0:1-2.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-freemarker-0:2.3.23-1.redhat_2.2.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-javapackages-tools-0:3.4.1-5.15.3.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-keycloak-0:2.5.5-2.Final_redhat_1.1.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-libunix-dbus-java-0:0.8.0-2.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-liquibase-0:3.4.1-2.redhat_2.1.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-twitter4j-0:4.0.4-1.redhat_3.1.jbcs.el7 | Fixed | RHSA-2017:0873 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-zxing-0:3.2.1-1.redhat_4.1.jbcs.el7 | Fixed | RHSA-2017:0873 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
AV:N/AC:L/Au:S/C:N/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.90% (0.01901) | 78.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.98% (0.01978) | 77.84th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.41% (0.00415) | 59.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.26% (0.00259) | 66.14th | v3 (v2023.03.01) |
| Feb 18, 2024 | 0.26% (0.00259) | 64.73th | v3 (v2023.03.01) |
| Aug 3, 2023 | 0.26% (0.00259) | 62.72th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.28% (0.00278) | 63.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.42% (0.00422) | 70.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://rhn.redhat.com/errata/RHSA-2017-0876.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/97392 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038180 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:0872 vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/errata/RHSA-2017:0873 vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/security/cve/CVE-2016-8629 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1388988 x_refsource_CONFIRMIssue Tracking
- https://github.com/advisories/GHSA-778x-2mqv-w6xw Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-8629
- https://www.cve.org/CVERecord?id=CVE-2016-8629
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2017-0876.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://www.securityfocus.com/bid/97392 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038180 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2017:0872 | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/errata/RHSA-2017:0873 | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-8629 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1388988 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/advisories/GHSA-778x-2mqv-w6xw | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-8629 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-8629 |
Change history (0)
No recorded changes yet.