Medium severity5.3GHSA Advisory· Published Jan 8, 2026· Updated Jun 8, 2026
CVE-2026-0707
CVE-2026-0707
Description
A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters (such as tabs) as separators and tolerates case variations that deviate from RFC 6750 specifications.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.keycloak:keycloak-parentMaven | <= 26.5.0 | — |
Affected products
2Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-gv94-wp4h-vv8pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-0707ghsaADVISORY
- access.redhat.com/errata/RHSA-2026:3947nvdWEB
- access.redhat.com/errata/RHSA-2026:3948nvdWEB
- access.redhat.com/security/cve/CVE-2026-0707nvdWEB
- bugzilla.redhat.com/show_bug.cginvdWEB
- github.com/keycloak/keycloak/issues/49433nvdWEB
News mentions
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