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CVE-2023-6927 (GCVE-0-2023-6927)
Vulnerability from cvelistv5 – Published: 2023-12-18 22:59 – Updated: 2025-11-11 15:55
VLAI
EPSS
Title
Keycloak: open redirect via "form_post.jwt" jarm response mode
Summary
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
Severity
4.6 (Medium)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
14 references
Impacted products
12 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 22 |
Unaffected:
22-7 , < *
(rpm)
cpe:/a:redhat:build_keycloak:22::el9 |
|
| Red Hat | Red Hat build of Keycloak 22.0.8 |
cpe:/a:redhat:build_keycloak:22 |
|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7.6 |
|
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 7 |
Unaffected:
0:18.0.11-3.redhat_00001.1.el7sso , < *
(rpm)
cpe:/a:redhat:red_hat_single_sign_on:7.6::el7 |
|
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 7 |
Unaffected:
0:18.0.12-1.redhat_00001.1.el7sso , < *
(rpm)
cpe:/a:redhat:red_hat_single_sign_on:7.6::el7 |
|
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 8 |
Unaffected:
0:18.0.11-3.redhat_00001.1.el8sso , < *
(rpm)
cpe:/a:redhat:red_hat_single_sign_on:7.6::el8 |
|
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 8 |
Unaffected:
0:18.0.12-1.redhat_00001.1.el8sso , < *
(rpm)
cpe:/a:redhat:red_hat_single_sign_on:7.6::el8 |
|
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 9 |
Unaffected:
0:18.0.11-3.redhat_00001.1.el9sso , < *
(rpm)
cpe:/a:redhat:red_hat_single_sign_on:7.6::el9 |
|
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 9 |
Unaffected:
0:18.0.12-1.redhat_00001.1.el9sso , < *
(rpm)
cpe:/a:redhat:red_hat_single_sign_on:7.6::el9 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.6-39 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.6-41 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | Single Sign-On 7.6.6 |
cpe:/a:redhat:red_hat_single_sign_on:7.6.6 |
Date Public
2023-12-18 00:00
Credits
Red Hat would like to thank Pontus Hanssen (Pontus.Hanssen@omegapoint.se) for reporting this issue.
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FKIE_CVE-2023-6927
Vulnerability from fkie_nvd - Published: 2023-12-18 23:15 - Updated: 2024-11-21 08:44
Severity
4.6 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| redhat | keycloak | - | |
| redhat | single_sign-on | 7.0 |
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GHSA-9VM7-V8WJ-3FQW
Vulnerability from github – Published: 2024-01-23 14:43 – Updated: 2024-12-26 15:09
VLAI
Summary
keycloak-core: open redirect via "form_post.jwt" JARM response mode
Details
An incomplete fix was found in Keycloak Core patch. An attacker can steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt". It is observed that changing the response_mode parameter in the original proof of concept from "form_post" to "form_post.jwt" can bypass the security patch implemented to address CVE-2023-6134.
Severity
4.6 (Medium)
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"published": "2024-01-23T14:43:50Z",
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GSD-2023-6927
Vulnerability from gsd - Updated: 2023-12-19 06:01Details
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
Aliases
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RHSA-2024:0094
Vulnerability from csaf_redhat - Published: 2024-01-09 16:09 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update on RHEL 7
Severity
Moderate
Notes
Topic: New Red Hat Single Sign-On 7.6.6 packages are now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This release of Red Hat Single Sign-On 7.6.6 on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.6.5, and includes bug fixes and enhancements.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in the Keycloak package. This flaw allows an attacker to utilize an LDAP injection to bypass the username lookup or potentially perform other malicious actions.
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el7sso.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el7sso.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.11-3.redhat_00001.1.el7sso.noarch | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Low
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el7sso.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el7sso.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.11-3.redhat_00001.1.el7sso.noarch | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
12 references
Acknowledgments
VHV
Konstantin Goldenberg
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
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{
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}
RHSA-2024:0095
Vulnerability from csaf_redhat - Published: 2024-01-09 16:08 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update on RHEL 8
Severity
Moderate
Notes
Topic: New Red Hat Single Sign-On 7.6.6 packages are now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This release of Red Hat Single Sign-On 7.6.6 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.6.5, and includes bug fixes and enhancements.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in the Keycloak package. This flaw allows an attacker to utilize an LDAP injection to bypass the username lookup or potentially perform other malicious actions.
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el8sso.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 8Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el8sso.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 8Base-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.11-3.redhat_00001.1.el8sso.noarch | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Low
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el8sso.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 8Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el8sso.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 8Base-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.11-3.redhat_00001.1.el8sso.noarch | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
12 references
Acknowledgments
VHV
Konstantin Goldenberg
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
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RHSA-2024:0096
Vulnerability from csaf_redhat - Published: 2024-01-09 16:09 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update on RHEL 9
Severity
Moderate
Notes
Topic: New Red Hat Single Sign-On 7.6.6 packages are now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This release of Red Hat Single Sign-On 7.6.6 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.5, and includes bug fixes and enhancements.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in the Keycloak package. This flaw allows an attacker to utilize an LDAP injection to bypass the username lookup or potentially perform other malicious actions.
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el9sso.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el9sso.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.11-3.redhat_00001.1.el9sso.noarch | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Low
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el9sso.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHSSO-7.6:rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el9sso.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.11-3.redhat_00001.1.el9sso.noarch | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
12 references
Acknowledgments
VHV
Konstantin Goldenberg
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
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"cve": "CVE-2023-6927",
"cwe": {
"id": "CWE-601",
"name": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
},
"discovery_date": "2023-12-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2255027"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode \"form_post.jwt\" which could be used to bypass the security patch implemented to address CVE-2023-6134.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "keycloak: open redirect via \"form_post.jwt\" JARM response mode",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this as a moderate, following the same case for CVE-2023-6134, but with another response mode with JSON Web Token.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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}
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"date": "2024-01-09T16:09:24+00:00",
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{
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "keycloak: open redirect via \"form_post.jwt\" JARM response mode"
}
]
}
RHSA-2024:0097
Vulnerability from csaf_redhat - Published: 2024-01-09 17:04 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 for OpenShift image enhancement and security update
Severity
Moderate
Notes
Topic: A new image is available for Red Hat Single Sign-On 7.6.6, running on OpenShift Container Platform 3.10 and 3.11, and 4.3.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Single Sign-On is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. The Red Hat Single Sign-On for OpenShift image provides an authentication server that you can use to log in centrally, log out, and register. You can also manage user accounts for web applications, mobile applications, and RESTful web services.
This erratum releases a new image for Red Hat Single Sign-On 7.6.6 for use within the OpenShift Container Platform 3.10, OpenShift Container Platform 3.11, and OpenShift Container Platform 4.3 cloud computing Platform-as-a-Service (PaaS) for on-premise or private cloud deployments, aligning with the standalone product release.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:1f39a66794485f27da60afe31e8c7f5db5ece4bcf5a457ee7bad4a72ee70ce2e_amd64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:7b10d4158944fd6c65f16c8b8cd57fb45c7a8c2cc0528bcce127218368ba41c3_s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:b145d1c7d0939d5b44234e2a9fbe7d0aba7b579e4aaf2c4977f8fde6aa97bff2_ppc64le | — |
Vendor Fix
fix
Workaround
|
Known not affected
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHOSE-Middleware:rh-sso-7/sso7-rhel8-operator-bundle@sha256:438375181ff28d5a61510a07f6e16d11944ebd6cc0a20961e06f662db3a16b1c_amd64 | — |
Workaround
|
Threats
Impact
Moderate
References
8 references
Acknowledgments
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
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"title": "Vulnerability description"
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"text": "keycloak: open redirect via \"form_post.jwt\" JARM response mode",
"title": "Vulnerability summary"
},
{
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"text": "Red Hat rates this as a moderate, following the same case for CVE-2023-6134, but with another response mode with JSON Web Token.",
"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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],
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-6927"
},
{
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"summary": "RHBZ#2255027",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255027"
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{
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},
{
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}
],
"release_date": "2023-12-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-01-09T17:04:02+00:00",
"details": "To update to the latest Red Hat Single Sign-On 7.6.6 for OpenShift image, follow these steps to pull in the content:\n\n1. On your main hosts, ensure you are logged into the CLI as a cluster administrator or user with project administrator access to the global \"openshift\" project. For example:\n\n$ oc login -u system:admin\n\n2. Update the core set of Red Hat Single Sign-On resources for OpenShift in the \"openshift\" project by running the following commands:\n\n$ for resource in sso76-image-stream.json \\\nsso76-https.json \\\nsso76-mysql.json \\\nsso76-mysql-persistent.json \\\nsso76-postgresql.json \\\nsso76-postgresql-persistent.json \\\nsso76-x509-https.json \\\nsso76-x509-mysql-persistent.json \\\nsso76-x509-postgresql-persistent.json\ndo\noc replace -n openshift --force -f \\\nhttps://raw.githubusercontent.com/jboss-container-images/redhat-sso-7-openshift-image/v7.6.6.GA/templates/${resource}\ndone\n\n3. Install the Red Hat Single Sign-On 7.6.6 for OpenShift streams in the \"openshift\" project by running the following command:\n\n$ oc -n openshift import-image redhat-sso76-openshift:1.0",
"product_ids": [
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:1f39a66794485f27da60afe31e8c7f5db5ece4bcf5a457ee7bad4a72ee70ce2e_amd64",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:7b10d4158944fd6c65f16c8b8cd57fb45c7a8c2cc0528bcce127218368ba41c3_s390x",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:b145d1c7d0939d5b44234e2a9fbe7d0aba7b579e4aaf2c4977f8fde6aa97bff2_ppc64le"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:0097"
},
{
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"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
"8Base-RHOSE-Middleware:rh-sso-7/sso7-rhel8-operator-bundle@sha256:438375181ff28d5a61510a07f6e16d11944ebd6cc0a20961e06f662db3a16b1c_amd64",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:1f39a66794485f27da60afe31e8c7f5db5ece4bcf5a457ee7bad4a72ee70ce2e_amd64",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:7b10d4158944fd6c65f16c8b8cd57fb45c7a8c2cc0528bcce127218368ba41c3_s390x",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:b145d1c7d0939d5b44234e2a9fbe7d0aba7b579e4aaf2c4977f8fde6aa97bff2_ppc64le"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"8Base-RHOSE-Middleware:rh-sso-7/sso7-rhel8-operator-bundle@sha256:438375181ff28d5a61510a07f6e16d11944ebd6cc0a20961e06f662db3a16b1c_amd64",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:1f39a66794485f27da60afe31e8c7f5db5ece4bcf5a457ee7bad4a72ee70ce2e_amd64",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:7b10d4158944fd6c65f16c8b8cd57fb45c7a8c2cc0528bcce127218368ba41c3_s390x",
"8Base-RHOSE-Middleware:rh-sso-7/sso76-openshift-rhel8@sha256:b145d1c7d0939d5b44234e2a9fbe7d0aba7b579e4aaf2c4977f8fde6aa97bff2_ppc64le"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "keycloak: open redirect via \"form_post.jwt\" JARM response mode"
}
]
}
RHSA-2024:0098
Vulnerability from csaf_redhat - Published: 2024-01-09 16:08 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update
Severity
Moderate
Notes
Topic: A security update is now available for Red Hat Single Sign-On 7.6 from the Customer Portal.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This release of Red Hat Single Sign-On 7.6.6 serves as a replacement for Red Hat Single Sign-On 7.6.5, and includes bug fixes and enhancements.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Single Sign-On 7.6.6
Red Hat / Red Hat Single Sign-On
|
cpe:/a:redhat:red_hat_single_sign_on:7.6.6
|
— |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
8 references
Acknowledgments
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
{
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"title": "Topic"
},
{
"category": "general",
"text": "Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.\n\nThis release of Red Hat Single Sign-On 7.6.6 serves as a replacement for Red Hat Single Sign-On 7.6.5, and includes bug fixes and enhancements.\n\nSecurity Fix(es):\n\n* open redirect via \"form_post.jwt\" JARM response mode (CVE-2023-6927)\n\nFor more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.",
"title": "Details"
},
{
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"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
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"title": "Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update",
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"id": "RHSA-2024:0098",
"initial_release_date": "2024-01-09T16:08:48+00:00",
"revision_history": [
{
"date": "2024-01-09T16:08:48+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2024-01-09T16:08:48+00:00",
"number": "2",
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{
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"vulnerabilities": [
{
"acknowledgments": [
{
"names": [
"Pontus Hanssen"
],
"organization": "Pontus.Hanssen@omegapoint.se"
}
],
"cve": "CVE-2023-6927",
"cwe": {
"id": "CWE-601",
"name": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
},
"discovery_date": "2023-12-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2255027"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode \"form_post.jwt\" which could be used to bypass the security patch implemented to address CVE-2023-6134.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "keycloak: open redirect via \"form_post.jwt\" JARM response mode",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this as a moderate, following the same case for CVE-2023-6134, but with another response mode with JSON Web Token.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"fixed": [
"Single Sign-On 7.6.6"
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-6927"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-6927",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6927"
}
],
"release_date": "2023-12-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-01-09T16:08:48+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"Single Sign-On 7.6.6"
],
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"scores": [
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"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
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},
"products": [
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]
}
],
"threats": [
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}
],
"title": "keycloak: open redirect via \"form_post.jwt\" JARM response mode"
}
]
}
RHSA-2024:0100
Vulnerability from csaf_redhat - Published: 2024-01-09 17:36 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat build of Keycloak 22.0.8 images enhancement and security update
Severity
Moderate
Notes
Topic: A security update is now available for Red Hat build of Keycloak 22.0.8 images running on OpenShift Container Platform.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat build of Keycloak 22.0.8 is an integrated solution, available as a Red Hat JBoss Middleware for OpenShift containerized image, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This erratum releases a security update and enhancement images for Red Hat build of Keycloak 22.0.8 for use within the OpenShift Container Platform 4.12, 4.13 and 4.14 cloud computing Platform-as-a-Service (PaaS) for on-premise or private cloud deployments, aligning with the standalone product release.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-rhel9@sha256:7a4e96d7b7b1d25bcc5ce00ea6c5d8d609e9c3368b60972c3995011565ffe5c8_amd64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-rhel9@sha256:88f657f1f805ec611ff6ffab89704d86de4affa6cd024be3bd79658561fd544c_ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-rhel9@sha256:c2c04c0b330cf4e13b6e22377e20cfed6648bfabaca8d9b30ed0cea730e7b7bf_s390x | — |
Vendor Fix
fix
Workaround
|
Known not affected
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-operator-bundle@sha256:47323bf5e0d1ec70bfec6d7dd476d1076d879d26cc166af451579e79a56046ec_amd64 | — |
Workaround
|
|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-rhel9-operator@sha256:32817f8250713ae02ef6a1c6837298032ca49b27ff4af3c35c9bb763ad47ba75_s390x | — |
Workaround
|
|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-rhel9-operator@sha256:b24d774edf776b6514935c8a6dc4822891039311f76b104300348418ffda90cc_amd64 | — |
Workaround
|
|
| Unresolved product id: 9Base-RHBK-22:rhbk/keycloak-rhel9-operator@sha256:bb21253f5563ba154c9dbd28560443a5d747211232c70645f4aa61f8e3f30bdf_ppc64le | — |
Workaround
|
Threats
Impact
Moderate
References
8 references
Acknowledgments
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
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"title": "Topic"
},
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"text": "Red Hat build of Keycloak 22.0.8 is an integrated solution, available as a Red Hat JBoss Middleware for OpenShift containerized image, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.\n\nThis erratum releases a security update and enhancement images for Red Hat build of Keycloak 22.0.8 for use within the OpenShift Container Platform 4.12, 4.13 and 4.14 cloud computing Platform-as-a-Service (PaaS) for on-premise or private cloud deployments, aligning with the standalone product release.\n\nSecurity Fix(es):\n\n* open redirect via \"form_post.jwt\" JARM response mode (CVE-2023-6927)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
"title": "Details"
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"title": "Red Hat Security Advisory: Red Hat build of Keycloak 22.0.8 images enhancement and security update",
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}
RHSA-2024:0101
Vulnerability from csaf_redhat - Published: 2024-01-09 16:42 - Updated: 2026-03-18 02:31Summary
Red Hat Security Advisory: Red Hat build of Keycloak 22.0.8 enhancement and security update
Severity
Moderate
Notes
Topic: Red Hat build of Keycloak 22.0.8 is now available from the Customer Portal.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat build of Keycloak 22.0.8 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This release of Red Hat build of Keycloak 22.0.8 serves as a replacement for Red Hat build of Keycloak 22.0.7, and includes bug fixes, enhancements and security fixes, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
4.6 (Medium)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat build of Keycloak 22.0.8
Red Hat / Red Hat build of Keycloak
|
cpe:/a:redhat:build_keycloak:22
|
— |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
8 references
Acknowledgments
Pontus.Hanssen@omegapoint.se
Pontus Hanssen
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"notes": [
{
"category": "summary",
"text": "Red Hat build of Keycloak 22.0.8 is now available from the Customer Portal.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
"title": "Topic"
},
{
"category": "general",
"text": "Red Hat build of Keycloak 22.0.8 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.\n\nThis release of Red Hat build of Keycloak 22.0.8 serves as a replacement for Red Hat build of Keycloak 22.0.7, and includes bug fixes, enhancements and security fixes, which are documented in the Release Notes document linked to in the References.\n\nSecurity Fix(es):\n\n* open redirect via \"form_post.jwt\" JARM response mode (CVE-2023-6927)\n\nFor more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.",
"title": "Details"
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"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
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"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_0101.json"
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"title": "Red Hat Security Advisory: Red Hat build of Keycloak 22.0.8 enhancement and security update",
"tracking": {
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"id": "RHSA-2024:0101",
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"revision_history": [
{
"date": "2024-01-09T16:42:16+00:00",
"number": "1",
"summary": "Initial version"
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{
"date": "2024-01-09T16:42:16+00:00",
"number": "2",
"summary": "Last updated version"
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{
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"number": "3",
"summary": "Last generated version"
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"status": "final",
"version": "3"
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"branches": [
{
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"name": "Red Hat build of Keycloak 22.0.8",
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"vulnerabilities": [
{
"acknowledgments": [
{
"names": [
"Pontus Hanssen"
],
"organization": "Pontus.Hanssen@omegapoint.se"
}
],
"cve": "CVE-2023-6927",
"cwe": {
"id": "CWE-601",
"name": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
},
"discovery_date": "2023-12-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2255027"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode \"form_post.jwt\" which could be used to bypass the security patch implemented to address CVE-2023-6134.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "keycloak: open redirect via \"form_post.jwt\" JARM response mode",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this as a moderate, following the same case for CVE-2023-6134, but with another response mode with JSON Web Token.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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],
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255027"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-6927",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6927"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-6927",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6927"
}
],
"release_date": "2023-12-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-01-09T16:42:16+00:00",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nFor more details see:\nhttps://access.redhat.com/documentation/en-us/red_hat_build_of_keycloak/22.0/html-single/migration_guide/",
"product_ids": [
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"url": "https://access.redhat.com/errata/RHSA-2024:0101"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
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]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"Red Hat build of Keycloak 22.0.8"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "keycloak: open redirect via \"form_post.jwt\" JARM response mode"
}
]
}
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Trend slope:
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(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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