CVE & CISA-KEV Catalog

CVE-2024-4540

HIGH
7.5
CVSS v3
NVD

Description

A flaw was found in Keycloak in OAuth 2.0 Pushed Authorization Requests (PAR). Client-provided parameters were found to be included in plain text in the KC_RESTART cookie returned by the authorization server's HTTP response to a `request_uri` authorization request, possibly leading to an information disclosure vulnerability.

CWE-312

How to fix

Remediation Available
rh-sso-7/sso76Red Hat / RHEL
Fixed in:openshift-rhel8@sha256:509a5c067105e608481b6dbd1d4f25e27dc446420b7830b06bf82981d851ac10_s390xRHSA-2024:3570
Fixed in:openshift-rhel8@sha256:f57c4d020d9186224404fa3ff40dbd09ed4c70de4c94bd281ceabc6e99dbd9d4_amd64RHSA-2024:3570
Fixed in:openshift-rhel8@sha256:0b4292deba12b39ec2d115323252561da25aff7d2eedfb74b4dc26404eedbb5c_ppc64leRHSA-2024:3570
rh-sso-7/sso76Rocky
Fixed in:openshift-rhel8@sha256:f57c4d020d9186224404fa3ff40dbd09ed4c70de4c94bd281ceabc6e99dbd9d4_amd64RHSA-2024:3570
Fixed in:openshift-rhel8@sha256:0b4292deba12b39ec2d115323252561da25aff7d2eedfb74b4dc26404eedbb5c_ppc64leRHSA-2024:3570
Fixed in:openshift-rhel8@sha256:509a5c067105e608481b6dbd1d4f25e27dc446420b7830b06bf82981d851ac10_s390xRHSA-2024:3570
rh-sso7-keycloakRed Hat / RHEL
Fixed in:0:18.0.14-1.redhat_00001.1.el7ssoRHSA-2024:3566
Fixed in:0:18.0.14-1.redhat_00001.1.el7ssoRHSA-2024:3566
Fixed in:0:18.0.14-1.redhat_00001.1.el8ssoRHSA-2024:3567
Fixed in:0:18.0.14-1.redhat_00001.1.el8ssoRHSA-2024:3567
Fixed in:0:18.0.14-1.redhat_00001.1.el9ssoRHSA-2024:3568
Fixed in:0:18.0.14-1.redhat_00001.1.el9ssoRHSA-2024:3568
rh-sso7-keycloakRocky
Fixed in:0:18.0.14-1.redhat_00001.1.el7ssoRHSA-2024:3566
Fixed in:0:18.0.14-1.redhat_00001.1.el7ssoRHSA-2024:3566
Fixed in:0:18.0.14-1.redhat_00001.1.el8ssoRHSA-2024:3567
Fixed in:0:18.0.14-1.redhat_00001.1.el8ssoRHSA-2024:3567
Fixed in:0:18.0.14-1.redhat_00001.1.el9ssoRHSA-2024:3568
Fixed in:0:18.0.14-1.redhat_00001.1.el9ssoRHSA-2024:3568
rh-sso7-keycloak-serverRocky
Fixed in:0:18.0.14-1.redhat_00001.1.el7ssoRHSA-2024:3566
Fixed in:0:18.0.14-1.redhat_00001.1.el8ssoRHSA-2024:3567
Fixed in:0:18.0.14-1.redhat_00001.1.el9ssoRHSA-2024:3568
rh-sso7-keycloak-serverRed Hat / RHEL
Fixed in:0:18.0.14-1.redhat_00001.1.el7ssoRHSA-2024:3566
Fixed in:0:18.0.14-1.redhat_00001.1.el8ssoRHSA-2024:3567
Fixed in:0:18.0.14-1.redhat_00001.1.el9ssoRHSA-2024:3568
rhbk/keycloakRocky
Fixed in:rhel9@sha256:22f396e6089ca6dde477768d6db93601400bca856ef8e40172386a28d27a6d45_s390xRHSA-2024:3576
Fixed in:rhel9-operator@sha256:852808bb948ab47f547d3863f96d165fc38393c6011f5968d66bf14500533a5c_s390xRHSA-2024:3576
Fixed in:rhel9@sha256:27d19c61a24ea38dfb537f89f9b459a1be957554985b489b5387c9d61fb3b271_ppc64leRHSA-2024:3576
Fixed in:rhel9-operator@sha256:57d9fabf4ef5677450af0e834b5d96694803a055514e262f4173118d7bc186f5_ppc64leRHSA-2024:3576
Fixed in:rhel9@sha256:31a6a24fd944d1ad702b29d94fae0f396aec4a53aea785fd726451bf746f38f7_s390xRHSA-2024:3573
Fixed in:rhel9-operator@sha256:84657b43cc9efa38eb3092c3a8af58d65f11d0668ac97239f4f90c1a48312758_s390xRHSA-2024:3573
Fixed in:rhel9@sha256:505d461864d7b1fc31c503eb23a26838f6b3f8968c9f3cbf72dada89d5617e8f_amd64RHSA-2024:3573
Fixed in:operator-bundle@sha256:029419edb428ff08c96c27985892a532575e1681a0a603a571de7c40ddcb8dc5_amd64RHSA-2024:3573
Fixed in:rhel9-operator@sha256:424e978364f2873c9b50cab3400bd88f2a41c0bc21efb4c5d84bfc4f644be1b4_amd64RHSA-2024:3573
Fixed in:rhel9@sha256:bee7dedbcafe6d67b5ca3be404c026740d7f6e659b377d27be60e82d89809290_ppc64leRHSA-2024:3573
Fixed in:rhel9-operator@sha256:3088c5f0f714a1e58455526ffe8ed221fcde410f98c09f001fc87721166f8f16_ppc64leRHSA-2024:3573
Fixed in:rhel9@sha256:cecd857e6417f83d07682b27b6e2c59af661e52ff7d56ee01c84792982472ba9_amd64RHSA-2024:3576
Fixed in:operator-bundle@sha256:106f2b57139af7135a83d41a1a0c8cf82d7f35ecb539e7d578759ac180ae1f03_amd64RHSA-2024:3576
Fixed in:rhel9-operator@sha256:85207f0d7f58bdf0e5b12b5b1a6332ef733d6febd9c9c9d3a357d10265ffcc0a_amd64RHSA-2024:3576
rhbk/keycloakRed Hat / RHEL
Fixed in:rhel9-operator@sha256:57d9fabf4ef5677450af0e834b5d96694803a055514e262f4173118d7bc186f5_ppc64leRHSA-2024:3576
Fixed in:rhel9-operator@sha256:84657b43cc9efa38eb3092c3a8af58d65f11d0668ac97239f4f90c1a48312758_s390xRHSA-2024:3573
Fixed in:rhel9@sha256:505d461864d7b1fc31c503eb23a26838f6b3f8968c9f3cbf72dada89d5617e8f_amd64RHSA-2024:3573
Fixed in:operator-bundle@sha256:029419edb428ff08c96c27985892a532575e1681a0a603a571de7c40ddcb8dc5_amd64RHSA-2024:3573
Fixed in:rhel9-operator@sha256:424e978364f2873c9b50cab3400bd88f2a41c0bc21efb4c5d84bfc4f644be1b4_amd64RHSA-2024:3573
Fixed in:rhel9@sha256:bee7dedbcafe6d67b5ca3be404c026740d7f6e659b377d27be60e82d89809290_ppc64leRHSA-2024:3573
Fixed in:rhel9-operator@sha256:3088c5f0f714a1e58455526ffe8ed221fcde410f98c09f001fc87721166f8f16_ppc64leRHSA-2024:3573
Fixed in:rhel9@sha256:cecd857e6417f83d07682b27b6e2c59af661e52ff7d56ee01c84792982472ba9_amd64RHSA-2024:3576
Fixed in:operator-bundle@sha256:106f2b57139af7135a83d41a1a0c8cf82d7f35ecb539e7d578759ac180ae1f03_amd64RHSA-2024:3576
Fixed in:rhel9-operator@sha256:85207f0d7f58bdf0e5b12b5b1a6332ef733d6febd9c9c9d3a357d10265ffcc0a_amd64RHSA-2024:3576
Fixed in:rhel9@sha256:22f396e6089ca6dde477768d6db93601400bca856ef8e40172386a28d27a6d45_s390xRHSA-2024:3576
Fixed in:rhel9-operator@sha256:852808bb948ab47f547d3863f96d165fc38393c6011f5968d66bf14500533a5c_s390xRHSA-2024:3576
Fixed in:rhel9@sha256:27d19c61a24ea38dfb537f89f9b459a1be957554985b489b5387c9d61fb3b271_ppc64leRHSA-2024:3576
Fixed in:rhel9@sha256:31a6a24fd944d1ad702b29d94fae0f396aec4a53aea785fd726451bf746f38f7_s390xRHSA-2024:3573

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.55%probability of exploitation in 30 days
42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Related Vulnerabilities

Other CWE-312 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-50719High7.584%-Fix
CVE-2022-26148Critical9.853%-Fix
CVE-2020-24577High7.519%-Fix
CVE-2021-27140High7.519%--
CVE-2021-27176High7.519%--
CVE-2021-27174High7.519%--
Embed a live status badge for CVE-2024-4540
CVE-2024-4540 severity badge

Markdown

[![CVE-2024-4540](https://tridentstack.com/cve/badge/CVE-2024-4540.svg)](https://tridentstack.com/cve/CVE-2024-4540)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-4540"><img src="https://tridentstack.com/cve/badge/CVE-2024-4540.svg" alt="CVE-2024-4540"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-25.