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TI-2026-21061 Aliases CVE-2026-26057GHSA-ppfx-73j5-fhxc

Skill Scanner Unsecured Network Binding Vulnerability

Priority MEDIUM 45CWE-668Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

Skill Scanner is a security scanner for AI Agent Skills that detects prompt injection, data exfiltration, and malicious code patterns. A vulnerability in the API Server of Skill Scanner could allow a unauthenticated, remote attacker to interact with the server API and either trigger a denial of service (DoS) condition or upload arbitrary files. This vulnerability is due to an erroneous binding to multiple interfaces. An attacker could exploit this vulnerability by sending API requests to a device exposing the affected API Server. A successful exploit could allow the attacker to consume an excessive amount of resources (memory starvation) or to upload files to arbitrary folders on the affected device. This vulnerability affects Skill-scanner 1.0.1 and earlier releases when the API Server is enabled. The API Server is not enabled by default. Skill-scanner software releases 1.0.2 and later contain the fix for this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00384 32nd percentileScored 2026-11-07
Fix Fixed skill-scanner (cisco-ai-defense): 1.0.2cisco-ai-skill-scanner (PyPI): 1.0.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
cisco-ai-defenseskill-scannerbefore 1.0.21.0.2Patch availableCNA
—cisco-ai-skill-scanner (PyPI)before 1.0.21.0.2Patch availableGHSA-ppfx-73j5-fhxc
  • skill-scanner Vendorcisco-ai-defense Affected before 1.0.2 Fixed in 1.0.2 Patch available CNA
  • cisco-ai-skill-scanner (PyPI) Vendor— Affected before 1.0.2 Fixed in 1.0.2 Patch available GHSA-ppfx-73j5-fhxc

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:skill_scanner:*:*:*:*:*:python:*:*before 1.0.2VulnerableCisco
  • cpe:2.3:a:cisco:skill_scanner:*:*:*:*:*:python:*:* Versions before 1.0.2 Vulnerable ·Cisco

Remediation

  • Fix · CNA skill-scanner (cisco-ai-defense) Fixed in 1.0.2
  • Fix · GHSA-ppfx-73j5-fhxc cisco-ai-skill-scanner (PyPI) Fixed in 1.0.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26057
  2. 2026-10-03 Alias added: GHSA-ppfx-73j5-fhxc

References

Patch 1

Advisory 2

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences