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01 Record

CVE-2026-0707

Keycloak: keycloak authorization header parsing leading to potential security control bypass

MediumPUBLISHEDCNA: redhat
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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02 Description

Keycloak: keycloak authorization header parsing leading to potential security control 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.
  • 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
0.40% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 34.3% of scored records. A rank, not a probability.
NVD base score
5.3 (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:N/I:L/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-10-26.
Red Hat severity
Moderate. 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
2026-01-08 03:41Z9 MO AGO
Last updated
2026-06-08 10:21Z4 MO AGO
Reserved
2026-01-08
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
  • CWE-551Incorrect Behavior Order: Authorization Before Parsing and CanonicalizationBase
Data version
5.2
Document digest
e67b994ebaa39985163e1c406763308478dd0f1d708413784a6b87e025d7496b

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat build of Keycloak 26.4Not specified—
Red HatRed Hat build of Keycloak 26.4.10Not specified—

06 References