Keycloak Encrypted SAML Assertion improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Keycloak. This impacts an unknown function of the component Encrypted SAML Assertion. Performing a manipulation results in improper authorization. This vulnerability is known as CVE-2026-2092. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Keycloak (version now known). It has been classified as critical. This affects some unknown processing of the component Encrypted SAML Assertion. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.

It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2026-2092. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/22/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

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 databases at EUVD (EUVD-2026-12688) and CERT Bund (WID-SEC-2026-0622). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source Keycloak

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.7
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/05/2026 Advisory disclosed
03/05/2026 +0 days VulDB entry created
03/22/2026 +17 days VulDB entry last update

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2026-2092 (🔒)
GCVE (CVE): GCVE-0-2026-2092
GCVE (VulDB): GCVE-100-349215
EUVD: 🔒
CERT Bund: WID-SEC-2026-0622 - Keycloak: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen

Entryinfo

Created: 03/05/2026 17:56
Updated: 03/22/2026 02:49
Changes: 03/05/2026 17:56 (48), 03/08/2026 21:09 (7), 03/18/2026 04:13 (1), 03/22/2026 02:49 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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