CVE-2026-3872
EUVD-2026-1820602.04.2026, 13:16
A flaw was found in Keycloak. This issue allows an attacker, who controls another path on the same web server, to bypass the allowed path in redirect Uniform Resource Identifiers (URIs) that use a wildcard. A successful attack may lead to the theft of an access token, resulting in information disclosure.
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| redhat | build_of_keycloak | - |
| redhat | build_of_keycloak | 26.2 |
| redhat | build_of_keycloak | 26.2.15 |
| redhat | build_of_keycloak | 26.4 |
| redhat | build_of_keycloak | 26.4.11 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2.15-1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2-18 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2-18 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.11-1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-14 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-14 ≤ 𝑥 < * | ADP |
Common Weakness Enumeration
References