CVE-2026-20359 Cisco Crosswork Security Hardening Release: August 2026
Insufficiently protected credentials in Cisco Crosswork Planning allow attackers to potentially access sensitive data or take over accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20359?
CVE-2026-20359 is a critical vulnerability in Cisco Crosswork Planning, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities trackled by CVE-2026-20359 are related to insufficiently protected credentials issues that are grouped under the Common Weakness Enumeration (CWE) CWE-522.
Weakness: CWE-522
Which versions are affected by CVE-2026-20359?
How do I fix CVE-2026-20359?
No fix has been published for CVE-2026-20359 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20359 being exploited?
There is no known exploitation of CVE-2026-20359 in the wild and no public exploit code.
Sources
Also known as GHSA-6g6f-8h58-99r5.