synced 10 MIN AGO
01 Record

CVE-2026-3872

Keycloak: keycloak: information disclosure due to redirect_uri validation bypass

HighPUBLISHEDCNA: redhat
CNA base score7.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
View raw JSON

02 Description

Keycloak: keycloak: information disclosure due to redirect_uri validation bypass

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.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total 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
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 37.9% of scored records. A rank, not a probability.
NVD base score
7.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-10-26.
Red Hat severity
Important. 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
2026-04-02 12:37Z7 MO AGO
Last updated
2026-07-15 01:02Z3 MO AGO
Reserved
2026-03-10
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-601URL Redirection to Untrusted Site ('Open Redirect')Base
Data version
5.2
Document digest
d9b3e13d74029c4dc5a34a13eab578d96847558126fece46fa0fbac51a105fe8

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat build of Keycloak 26.2Not specified—
Red HatRed Hat build of Keycloak 26.2.15Not specified—
Red HatRed Hat build of Keycloak 26.4Not specified—
Red HatRed Hat build of Keycloak 26.4.11Not specified—

06 References