Vulnerabilities in Node.js and Brotli Affecting Cisco Products: October 2026
cisco-sa-oct2026-node-js-Jj3SQ19u
Summary
Multiple vulnerabilities in Cisco Identity Services Engine (ISE) could allow an unauthenticated, local attacker to either conduct an authentication bypass or disclose sensitive information. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories.
In addition, for further documentation of improvements and fixes in Cisco Identity Services Engine, see Cisco Identity Services Engine Security Hardening Release: September 2026. Security Impact Rating: Medium CVE: CVE-2026-20071,CVE-2026-20072
Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
Cisco has released software updates that address these vulnerabilities.
CVEs in this advisory 2
Update history
What changed in later vendor updates
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- The vendor changed the advisory summary.
Updates
- Published by Cisco
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
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