- 8.1HighCVSS base score
- 1.2%Exploitation in 30 daysEPSS · top 32% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker.
Timeline
ID reserved
By redhat
- 10 months later
· 10 months later
Published
- 10 months later
· 10 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 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.2% · top 32% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Affected products
Red Hat · Red Hat Single Sign-On 7
All versions: unaffected
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 0:18.0.6-1.redhat_00001.1.el8sso – < *
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9
- unaffected 0:18.0.6-1.redhat_00001.1.el9sso – < *
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.keycloak:keycloak-parentGHSA-9hhc-pj4w-w5rv (opens in a new tab)
References
References6
- 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-2023:1049 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://access.redhat.com/security/cve/CVE-2022-4137 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2148496 (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-2023-0968 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-9hhc-pj4w-w5rv (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-2022-4137)Record last updated .