CVE-2022-3916Keycloak: session takeover with oidc offline refreshtokens
- 6.8MediumCVSS base score
- 0.95%Exploitation in 30 daysEPSS · top 38% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in the offline_access scope in Keycloak. This issue would affect users of shared computers more (especially if cookies are not cleared), due to a lack of root session validation, and the reuse of session ids across root and user authentication sessions. This enables an attacker to resolve a user session attached to a previously authenticated user; when utilizing the refresh token, they will be issued a token for the original user.
Timeline
ID reserved
By redhat
- 11 months later
· 11 months later
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Medium6.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | Medium6.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.95% · top 38% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
Red Hat · Red Hat Single Sign-On 7
All versions: unaffected
Red Hat · Red Hat Single Sign-On 7.6.1
All versions: unaffected
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7
- unaffected 0:18.0.3-1.redhat_00002.1.el7sso – < *
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7
- unaffected 0:18.0.6-1.redhat_00001.1.el7sso – < *
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8
- unaffected 0:18.0.3-1.redhat_00002.1.el8sso – < *
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8
- unaffected 0:18.0.6-1.redhat_00001.1.el8sso – < *
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9
- unaffected 0:18.0.3-1.redhat_00002.1.el9sso – < *
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9
- unaffected 0:18.0.6-1.redhat_00001.1.el9sso – < *
Red Hat · RHEL-8 based Middleware Containers
- unaffected 7.6-15 – < *
Red Hat · RHEL-8 based Middleware Containers
- unaffected 7.6-20 – < *
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.keycloak:keycloak-parentGHSA-97g8-xfvw-q4hg (opens in a new tab)
References
References12
- RHSA-2022:8961 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2022:8962 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2022:8963 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2022:8964 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2022:8965 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:1043 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:1044 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:1045 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:1047 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:1049 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://access.redhat.com/security/cve/CVE-2022-3916 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2141404 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-7575 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-97g8-xfvw-q4hg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-3916)Record last updated .