CVE-2026-50192Public exploitNetwork attack vector

Credential disclosure via cross-host redirects

Published Aug 20, 2026 · Updated Aug 20, 2026

Credential disclosure in Kerberos.io Kerberos Agent before 3.6.26 allows remote attackers to read Hub credentials via cross-host redirects. In machinery/src/cloud/kerberos_hub.go, UploadKerberosHub places Hub keys in custom X-Kerberos-Hub-* headers and sends them with a bare http.Client that follows redirects without a CheckRedirect policy, so Go forwards those custom headers to a different host. Exposure requires control of the configured hub_uri or a redirect reachable from it, such as an open redirect, hijacked Hub, or malicious configuration, and the leaked private key can let an attacker impersonate the device to Kerberos Hub.

CVSS severity6.9
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential disclosure in Kerberos.io Kerberos Agent before 3.6.26 allows remote attackers to read Hub credentials via cross-host redirects. In machinery/src/cloud/kerberos_hub.go, UploadKerberosHub places Hub keys in custom X-Kerberos-Hub-* headers and sends them with a bare http.Client that follows redirects without a CheckRedirect policy, so Go forwards those custom headers to a different host. Exposure requires control of the configured hub_uri or a redirect reachable from it, such as an open redirect, hijacked Hub, or malicious configuration, and the leaked private key can let an attacker impersonate the device to Kerberos Hub.

The record

CVE
CVE-2026-50192
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
Kerberos.io
Product
Kerberos Agent
Classifications
CWE-522, CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.6.26

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kerberos.io · Kerberos Agentversion=< 3.6.26

Published CVSS scores

6.9GitHub_MCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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