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01 Record

CVE-2024-4540

Keycloak: exposure of sensitive information in pushed authorization requests (par) kc_restart cookie

HighPUBLISHEDCNA: redhat
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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02 Description

Keycloak: exposure of sensitive information in pushed authorization requests (par) kc_restart cookie

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.55% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 45.8% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-10-09.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-06-03 15:33Z2 YR AGO
Last updated
2026-10-09 16:43Z19 DAYS AGO
Reserved
2024-05-06
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-312Cleartext Storage of Sensitive InformationBase
Data version
5.2
Document digest
2e73fefb0fec1e296ee8e32b85d94a987e211121760c01daa54986e274d3fdd0

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat Build of KeycloakNot specified—
Red HatRed Hat build of Keycloak 22Not specified—
Red HatRed Hat build of Keycloak 24Not specified—
Red HatRed Hat Single Sign-On 7Not specified—
Red HatRed Hat Single Sign-On 7.6 for RHEL 7Not specified—
Red HatRed Hat Single Sign-On 7.6 for RHEL 8Not specified—
Red HatRed Hat Single Sign-On 7.6 for RHEL 9Not specified—
Red HatRHEL-8 based Middleware ContainersNot specified—

06 References