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CVE-2026-20030 – SQL Injection – Cisco Crosswork Planning 7.0.0 through 7.2.1

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Summary

CVE-2026-20030 is a critical (CVSS 10.0) SQL injection vulnerability (CWE-89) affecting Cisco Crosswork Planning. It was identified by Cisco during an internal security review — conducted using existing testing processes as well as frontier AI models — as part of a broader "Cisco Crosswork Security Hardening Release" issued in August 2026 alongside three other critical/near-critical CVEs. The flaw stems from improper neutralization of special elements used in SQL commands, and Cisco has confirmed it is not aware of any public exploitation.

Technical details

  • Root cause: Improper neutralization of special elements used in a SQL command (SQL Injection, CWE-89) within the Cisco Crosswork Planning software.
  • Trigger conditions: An attacker sends crafted input to the affected application that is passed unsanitized into a backend SQL query.
  • Attack vector: Network-based, requiring no privileges and no user interaction (AV:N/AC:L/PR:N/UI:N).
  • Impact: Scope is changed (S:C), and successful exploitation could result in high impact to confidentiality, integrity, and availability — potentially allowing an unauthenticated remote attacker to read, modify, or destroy backend database data, or affect other components tied to the underlying database.
  • Discovery: Found internally by Cisco; this specific CVE was tracked and grouped by CWE class alongside CVE-2026-20357 (missing authentication for critical function), CVE-2026-20358 (external control of file system), and CVE-2026-20359 (insufficiently protected credentials), all disclosed in the same advisory.
  • Exploitation status: Cisco PSIRT states it is not aware of any public announcements or malicious use of this vulnerability.

Affected software

  • Cisco Crosswork Planning versions 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.1.0, 7.1.1, 7.1.2, and 7.2.0 (i.e., release 7.2.1 and earlier, per Cisco’s fixed-release table).
  • Note: The same advisory also covers Cisco Crosswork Data Gateway and Cisco Crosswork Network Controller for other CVEs in the hardening release, but CVE-2026-20030 specifically is scoped to Cisco Crosswork Planning.

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Upgrade Cisco Crosswork Planning (release 7.2.1 and earlier) to the fixed release 7.2.1-SP or later, as specified in Cisco’s advisory.
  • If no patch can be applied immediately: Cisco states there are no workarounds available for this vulnerability. Organizations unable to patch immediately should restrict network access to the Crosswork Planning application to trusted management networks only, and monitor for anomalous database query activity as a compensating control until the patch is applied.

References

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