VDB-347628 · CVE-2026-3121 · WID-SEC-2026-0787

Red Hat KeyCloak permission

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$5k-$25k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Red Hat KeyCloak. The affected element is an unknown function. The manipulation results in permission. This vulnerability was named CVE-2026-3121. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Red Hat KeyCloak (affected version unknown). Affected is an unknown functionality. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2026-3121. The exploitability is told to be easy. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/20/2026). The MITRE ATT&CK project declares the attack technique as T1222.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0787). Once again VulDB remains the best source for vulnerability data.

Affected

Open Source Keycloak

Productinfo

Vendor

Red Hat

Name

KeyCloak

License

open-source

Website

Vendor: https://www.redhat.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/24/2026 Advisory disclosed
02/24/2026 +0 days VulDB entry created
03/20/2026 +24 days VulDB entry last update

Sourcesinfo

Vendor: redhat.com

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2026-3121 (🔒)
GCVE (CVE): GCVE-0-2026-3121
GCVE (VulDB): GCVE-100-347628
CERT Bund: WID-SEC-2026-0787 - Keycloak: Mehrere Schwachstellen

Entryinfo

Created: 02/24/2026 18:30
Updated: 03/20/2026 04:11
Changes: 02/24/2026 18:30 (48), 03/20/2026 04:11 (7)
Complete: 🔍
Cache ID: 216::103