CVE-2026-4636

highPriorität · verfolgen · 0EPSS 0.005 · 41. PerzentilDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.48% (41st) EPSS
CVSS 8.1 · high
Is it mine?
23 products
Prüfe deine Angriffsfläche
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · bewertet 2026-10-23

A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.

01

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.1
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v3.18.1highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · secalert@redhat.com USAusnutzbarkeit 2.8 · Auswirkung 5.2
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NsecondaryAusnutzbarkeit 2.8 · Auswirkung 5.2
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV
02

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-551USCWE-551USCWE-551US
04

betroffene Produkte (23)

Betroffene Produkte und Versionsbereiche.

20 von 23 angezeigt
05

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

  • WID-SEC-W-2026-0977Keycloak: Mehrere SchwachstellenDeutsch2026-04-06csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Daten zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.

  • GHSA-f2hx-5fx3-hmcvKeycloak: UMA Policy Resource Injection Allows Unauthorized Cross-User Permission Grants2026-04-02ghsa · osvUS

    A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.

  • BIT-keycloak-2026-4636Keycloak: keycloak: uma policy bypass allows authenticated users to gain unauthorized access to victim-owned resources.2026-08-25vendor · osvUS

    A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.

06

auch bekannt als (6)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bduosvcert_bundnvdNVDCVE.orgMITRE
veröffentlicht 2026-04-02geändert 2026-07-15
08

Referenzen (20)

Externe Belege — Patches, Meldungen, Analysen.

scry

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