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CVE-2024-4540

UNKNOWN
Published 2024-06-03T15:33:18.191Z
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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.006
probability
of exploitation in the wild

There is a 0.6% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.692
Higher than 69.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
NONE
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Unknown Vendor

Unknown Product

Affected Versions:

d5e82356f90893ca3b308a7e10020103e402369a
Red Hat

Red Hat Build of Keycloak

Red Hat

Red Hat Build of Keycloak

Red Hat

Red Hat build of Keycloak 22

Affected Versions:

22.0.11-2
Red Hat

Red Hat build of Keycloak 22

Affected Versions:

22-15
Red Hat

Red Hat build of Keycloak 22

Affected Versions:

22-18
Red Hat

Red Hat build of Keycloak 24

Affected Versions:

24.0.5-2
Red Hat

Red Hat build of Keycloak 24

Affected Versions:

24-10
Red Hat

Red Hat build of Keycloak 24

Affected Versions:

24-10
Red Hat

Red Hat Single Sign-On 7

Red Hat

Red Hat Single Sign-On 7.6 for RHEL 7

Affected Versions:

0:18.0.14-1.redhat_00001.1.el7sso
Red Hat

Red Hat Single Sign-On 7.6 for RHEL 8

Affected Versions:

0:18.0.14-1.redhat_00001.1.el8sso
Red Hat

Red Hat Single Sign-On 7.6 for RHEL 9

Affected Versions:

0:18.0.14-1.redhat_00001.1.el9sso
Red Hat

RHEL-8 based Middleware Containers

Affected Versions:

7.6-49

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

Keycloak exposes sensitive information in Pushed Authorization Requests (PAR)

GHSA-69fp-7c8p-crjr

Advisory Details

A flaw was found in Keycloak in the 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. This could lead to an information disclosure vulnerability.

Affected Packages

Maven org.keycloak:keycloak-services
ECOSYSTEM: ≥0 <24.0.5

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

WEB https://github.com/keycloak/keycloak/security/advisories/GHSA-69fp-7c8p-crjr
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-4540
WEB https://github.com/keycloak/keycloak/commit/2191cc26ae6deb52eeaf74046027b65804d16fd0
WEB https://access.redhat.com/errata/RHSA-2024:3566
WEB https://access.redhat.com/errata/RHSA-2024:3567
WEB https://access.redhat.com/errata/RHSA-2024:3568
WEB https://access.redhat.com/errata/RHSA-2024:3570
WEB https://access.redhat.com/errata/RHSA-2024:3572
WEB https://access.redhat.com/errata/RHSA-2024:3573
WEB https://access.redhat.com/errata/RHSA-2024:3574
WEB https://access.redhat.com/errata/RHSA-2024:3575
WEB https://access.redhat.com/errata/RHSA-2024:3576
WEB https://access.redhat.com/security/cve/CVE-2024-4540
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2279303
PACKAGE https://github.com/keycloak/keycloak

Advisory provided by GitHub Security Advisory Database. Published: June 10, 2024, Modified: July 31, 2024

References

https://access.redhat.com/errata/RHSA-2024:3566
https://access.redhat.com/errata/RHSA-2024:3567
https://access.redhat.com/errata/RHSA-2024:3568
https://access.redhat.com/errata/RHSA-2024:3570
https://access.redhat.com/errata/RHSA-2024:3572
https://access.redhat.com/errata/RHSA-2024:3573
https://access.redhat.com/errata/RHSA-2024:3574
https://access.redhat.com/errata/RHSA-2024:3575
https://access.redhat.com/errata/RHSA-2024:3576
https://access.redhat.com/security/cve/CVE-2024-4540
https://bugzilla.redhat.com/show_bug.cgi?id=2279303
Published: 2024-06-03T15:33:18.191Z
Last Modified: 2024-11-13T14:26:26.123Z
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