CVE-2026-20315 Cisco Secure Workload Software Security Hardening Release August 2026 - Improper Access Control Vulnerabilities

Critical 10.0 Published Updated

Cisco Secure Workload contains improper access control vulnerabilities allowing unauthorized access, requiring a security hardening patch.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-20315?

CVE-2026-20315 is a critical missing authorization vulnerability in Cisco Secure Workload, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload 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 tracked by CVE-2026-20315 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.

Weakness: CWE-284

Which versions are affected by CVE-2026-20315?

How do I fix CVE-2026-20315?

No fix has been published for CVE-2026-20315 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-20315 being exploited?

There is no known exploitation of CVE-2026-20315 in the wild and no public exploit code.

Sources

Also known as GHSA-gmcf-5grf-3p5g.

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