CVE-2026-3872Disclosure(redhat / build_of_keycloak)

LOWCVSS 7.3 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-601

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • build_of_keycloak

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
build_of_keycloak

5 versions affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-04-02: 1Technical Details · 2026-04-02: 104-02
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    Disclosure

    CVE-2026-3872 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 I… https://www.cve.org/CVERecord?id=CVE-2026-3872

    Post summary

    The text announces the discovery of Keycloak CVE-2026-3872, detailing a path bypass in redirects, but contains no evidence of exploitation, patches, or PoC.

    00000136
    56.9K followersView on X
CPE platform detail5 entries

5 of 5 entries

PartVendorProductVersionTarget SWTarget HW
Appredhatbuild_of_keycloak---
Appredhatbuild_of_keycloak26.2--
Appredhatbuild_of_keycloak26.2.15--
Appredhatbuild_of_keycloak26.4--
Appredhatbuild_of_keycloak26.4.11--

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