Vulnerability · Published Oct 20, 2026 · Assigned by redhat
CVE-2026-105941Kroxylicious-kms-provider-azure-key-vault-kms: streams for apache kafka kroxylicious: azure key vault ssrf exfiltrates bearer token via untrusted edek vaultname
High 8.1
In plain English
A high-severity server-side request forgery in streams for Apache Kafka 3 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.2%top 83.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | streams for Apache Kafka 3 | see references |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- https://access.redhat.com/security/cve/CVE-2026-105941 vdb-entry, x_refsource_REDHAT
- RHBZ#2510876 issue-tracking, x_refsource_REDHAT
- https://github.com/kroxylicious/kroxylicious/commit/aa1b02a5f8e5bb5003f88b3160a811019cd11139
- https://github.com/kroxylicious/kroxylicious/security/advisories/GHSA-5j25-p663-ww5r