Broker VM (< 30.0.24) — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/broker-vm--30.0.24/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioWed, 13 May 2026 16:02:39 +0000CVE-2026-0238: Palo Alto Networks Broker VM Improper Input Validationhttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-0238-broker-vm-input-validation/Wed, 13 May 2026 16:02:39 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-0238-broker-vm-input-validation/CVE-2026-0238 is an improper input validation vulnerability in Palo Alto Networks Broker VM that allows an authenticated administrator to inject arbitrary content into certain fields, affecting versions 30.0 prior to 30.0.24.CVE-2026-0238 is a low-severity vulnerability affecting Palo Alto Networks Broker VM. The vulnerability stems from improper input validation in the certificate and key fields of the Broker VM. An authenticated administrator with low privileges can inject arbitrary content into these fields, potentially leading to unforeseen consequences. This vulnerability affects Broker VM versions 30.0 prior to 30.0.24. Palo Alto Networks discovered this vulnerability during an internal penetration test and has released version 30.0.24 to address the issue. There is no evidence of active exploitation.

Attack Chain

  1. An authenticated administrator gains access to the Broker VM management interface.
  2. The administrator navigates to the certificate or key configuration settings within the Broker VM.
  3. The administrator injects arbitrary content into the certificate or key field.
  4. The Broker VM processes the injected content without proper validation.
  5. The injected content could potentially lead to unintended modifications of the Broker VM configuration.
  6. The modified configuration may cause unexpected behavior or instability within the Broker VM.

Impact

Successful exploitation of CVE-2026-0238 allows an authenticated administrator to inject arbitrary content into Broker VM fields. The impact of this vulnerability is rated as low, primarily affecting product integrity. The potential consequences could involve configuration changes leading to instability or unexpected behavior. Palo Alto Networks is not aware of any malicious exploitation of this issue.

Recommendation

  • Upgrade Palo Alto Networks Broker VM to version 30.0.24 or later to remediate CVE-2026-0238 (see Solution section).
  • Monitor Broker VM logs for unexpected configuration changes performed by administrative accounts (no specific rule provided due to lack of log detail).
  • Review Broker VM access controls to ensure only authorized personnel have administrative privileges (no specific rule or IOC provided).
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