RH
Product
Red Hat Build of Keycloak
by Red Hat · last CVE Oct 29, 2026
110
CVEs
0
On KEV
9.8
Max CVSS
14
New 30D
Severity mix
Critical 4High 36Medium 60Low 10
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Add Red Hat Build of Keycloak to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-42581
9.8
1%
May 13
Netty: HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization
Affected: All versions, or not specified
CVE-2026-33228
9.8
1%
Mar 20
flatted: Prototype Pollution via parse()
Affected: All versions, or not specified
CVE-2026-42584
9.1
1%
May 13
Netty: HttpClientCodec response desynchronization
Affected: All versions, or not specified
CVE-2026-42579
9.1
1%
May 13
Netty: DNS Codec Input Validation Bypass in Netty (Encoder + Decoder)
Affected: All versions, or not specified
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