CVE-2026-20223
Cisco Secure Workload Unauthorized API Access Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- cisco
Description
A vulnerability in the access validation of internal REST APIs of Cisco Secure Workload could allow an unauthenticated, remote attacker to access site resources with the privileges of the Site Admin role. This vulnerability is due to insufficient validation and authentication when accessing REST API endpoints. An attacker could exploit this vulnerability if they are able to send a crafted API request to an affected endpoint. A successful exploit could allow the attacker to read sensitive information and make configuration changes across tenant boundaries with the privileges of the Site Admin user.
Timeline
ID reserved
By cisco
- 7 months later
· 7 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.83% · top 42% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Weakness
Affected products
- affected 2.2.1.41
- affected 3.2.1.18
- affected 3.3.2.50
- affected 3.4.1.28
- affected 3.4.1.34
- affected 2.3.1.45
- affected 2.3.1.41
- affected 3.3.2.28
- affected 3.1.1.59
- affected 2.0.2.20
- affected 2.1.1.33
- affected 2.1.1.29
- affected 3.2.1.28
- affected 3.4.1.35
- affected 3.1.1.65
- affected 3.1.1.67
- affected 2.0.1.34
- affected 2.3.1.49
- affected 2.2.1.39
- affected 3.4.1.19
- affected 3.3.2.23
- affected 3.1.1.61
- affected 3.1.1.54
- affected 3.5.1.17
- affected 3.3.2.33
- affected 3.5.1.1
- affected 2.3.1.53
- affected 3.5.1.20
- affected 3.5.1.30
- affected 3.3.2.16
- affected 3.1.1.55
- affected 3.4.1.6
- affected 2.3.1.50
- affected 2.3.1.52
- affected 3.2.1.19
- affected 2.2.1.35
- affected 3.1.1.53
- affected 3.1.1.70
- affected 3.2.1.20
- affected 3.5.1.2
- and 59 more
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-20223)Record last updated .