Access Control Weakness in Packet-Analysis Component by Cisco
CVE-2026-90454

5.3MEDIUM

Key Information:

Vendor

Cisa

Status
Malcolm
Vendor
CVE Published:
11 September 2026

What is CVE-2026-90454?

An access control vulnerability exists in Cisco's packet-analysis component where a misconfigured deployment allows authenticated users to modify tags in stored session records. The intended read-only access is undermined due to a failure in properly restricting write-capable routes, enabling the manipulation of session tags, which could lead to unauthorized changes in session data.

Affected Version(s)

Malcolm 0

Malcolm v26.06.0

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/cs...
government-resourcevendor-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.