Bug 2510876 (CVE-2026-105941)

Summary:	CVE-2026-105941 kroxylicious-kms-provider-azure-key-vault-kms: Streams for Apache Kafka Kroxylicious: Azure Key Vault SSRF exfiltrates bearer token via untrusted EDEK vaultName
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	chfoley, jturenov, rgodfrey, security-response-team, swoodman
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	The Azure Key Vault KMS provider in Kroxylicious accepts an untrusted vaultName from wire-deserialized EDEK bytes without format validation, enabling SSRF that exfiltrates the proxy's Azure bearer token to an attacker-controlled host. Token replay against the real Key Vault defeats the entire record-encryption trust model.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Deadline:	2026-10-20

Description OSIDB Bzimport 2026-08-04 03:19:35 UTC

Source: Internal security audit — Streams for Apache Kafka / Kroxylicious f001
Upstream project: Kroxylicious (Red Hat-owned, github.com/kroxylicious/kroxylicious)
Upstream advisory: N/A — Red Hat-owned code. Disclose via kroxylicious-security

Affected code:
- AzureKeyVaultEdek.java — validates vaultName with only !isBlank, not VAULT_NAME_PATTERN regex
- KeyVaultClient.java — unvalidated vaultName string-concatenated into Key Vault URL; bearer token attached regardless of destination

Fix status: Patch exists in scan-mw but not yet merged upstream. Requires applying VAULT_NAME_PATTERN to wire-deserialized vaultName.

Comment 1 Jon Orris 2026-10-21 07:34:14 UTC

This issue has been addressed in the following products:

  Streams for Apache Kafka 3.2.2

Via RHSA-2026:86676 https://access.redhat.com/errata/RHSA-2026:86676