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01 Record

CVE-2026-7507

Org.keycloak/keycloak-services: session fixation in oidc login flow that can lead to account takeover

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

Org.keycloak/keycloak-services: session fixation in oidc login flow that can lead to account takeover

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
0.83% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 57.4% 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:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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
2026-05-19 11:01Z5 MO AGO
Last updated
2026-10-06 16:59Z23 DAYS AGO
Reserved
2026-04-30
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-290Authentication Bypass by SpoofingBase
Data version
5.2
Document digest
31e614af27e9635b7d214a2dbf47b76f967e9da20b57f9d766120f7318f66612

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat build of Keycloak 26.2Not specified—
Red HatRed Hat build of Keycloak 26.2.16Not specified—
Red HatRed Hat build of Keycloak 26.4Not specified—
Red HatRed Hat build of Keycloak 26.4.12Not specified—
Red HatRed Hat Single Sign-On 7.6.13Not 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