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2330 articles · 161069 vulns · 36/41 feeds (7d)
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10.0
CVE-2026-20223EXPLOITEDPATCHED
cis · secure workload

Cisco Secure Workload Unauthorized API Access Vulnerability

Description

The vulnerability allows attackers to access resources with 'Site Admin' role rights without prior authentication due to insufficient validation and authentication checks on internal REST APIs.

Affected Products

VendorProductVersions
cissecure workload2.2.1.41, 3.2.1.18, 3.3.2.50, 3.4.1.28, 3.4.1.34, 2.3.1.45, 2.3.1.41, 3.3.2.28, 3.1.1.59, 2.0.2.20, 2.1.1.33, 2.1.1.29, 3.2.1.28, 3.4.1.35, 3.1.1.65, 3.1.1.67, 2.0.1.34, 2.3.1.49, 2.2.1.39, 3.4.1.19, 3.3.2.23, 3.1.1.61, 3.1.1.54, 3.5.1.17, 3.3.2.33, 3.5.1.1, 2.3.1.53, 3.5.1.20, 3.5.1.30, 3.3.2.16, 3.1.1.55, 3.4.1.6, 2.3.1.50, 2.3.1.52, 3.2.1.19, 2.2.1.35, 3.1.1.53, 3.1.1.70, 3.2.1.20, 3.5.1.2, 1.103.1.12, 2.3.1.51, 3.3.2.42, 3.4.1.1, 3.3.2.12, 2.1.1.31, 3.5.1.23, 3.3.2.53, 3.4.1.14, 3.3.2.2, 3.4.1.20, 3.3.2.35, 2.2.1.34, 1.102.21, 3.3.2.5, 3.5.1.31, 3.6.1.5, 3.2.1.31, 3.5.1.37, 3.4.1.40, 3.6.1.17, 3.6.1.21, 3.2.1.32, 3.2.1.33, 3.6.1.35, 3.6.1.36, 3.7.1.5, 3.6.1.47, 3.7.1.22, 3.6.1.52, 3.7.1.39, 3.8.1.1, 3.7.1.51, 3.8.1.19, 3.8.1.36, 3.7.1.59, 3.8.1.39, 3.9.1.1, 3.9.1.10, 3.9.1.24, 3.9.1.25, 3.9.1.28, 3.9.1.38, 3.8.1.53, 3.9.1.52, 3.10.1.1, 3.9.1.64, 3.10.2.11, 3.9.1.66, 3.10.3.19, 3.9.1.69, 3.10.4.8, 3.10.5.6, 4.0.1.1, 4.0.2.4, 4.0.2.5, 3.10.6.3, 3.10.7.4, 4.0.3.13, 3.10.8.3

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
cissecure_workloadcert_advisory90%

References

  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csw-pnbsa-g8WEnuy

Related News (9 articles)

Tier B
BSI Advisories17d ago
[NEU] [hoch] Cisco Secure Workload: Schwachstelle ermöglicht Erlangen von Administratorrechten
→ No new info (linked only)
Tier D
Heise Security17d ago
Cisco stopft Sicherheitsleck mit Höchstwertung in Secure Workload
→ No new info (linked only)
Tier D
The Hacker News17d ago
Cisco Patches CVSS 10.0 Secure Workload REST API Flaw Enabling Data Access
→ No new info (linked only)
Tier D
CSO Online18d ago
Critical vulnerability in Cisco Secure Workload rated at maximum severity
→ No new info (linked only)
Tier D
SecurityWeek18d ago
Cisco Patches Critical Vulnerability in Secure Workload
→ No new info (linked only)
Tier B
CERT-FR19d ago
Vulnérabilité dans Cisco Secure Workload (21 mai 2026)
→ No new info (linked only)
Tier B
CCCS Canada19d ago
Cisco security advisory (AV26-491)
→ No new info (linked only)
Tier C
VulDB19d ago
CVE-2026-20223 | Cisco Secure Workload up to 4.0.3.13 REST API missing authentication (cisco-sa-csw-pnbsa-g8WEnuy)
→ No new info (linked only)
Tier A
Cisco Security19d ago
Cisco Secure Workload Unauthorized API Access Vulnerability
→ No new info (linked only)
CVSS 3.110.0 CRITICAL
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
4.0.3.17
CWECWE-306
PublishedMay 20, 2026
Last enriched17d agov6
Tags
unauthorized accessapi vulnerabilitycritical
Trending Score8
Source articles9
Independent9
Info Completeness10/14
Missing: epss, kev, iocs, mitre_attack

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Pin to Dashboard

Verification

State: verified
Confidence: 0%

Vulnerability Timeline

CVE Published
May 20, 2026
Discovered by ZDM
May 20, 2026
Actively Exploited
May 21, 2026
Exploit Available
May 21, 2026
Patch Available
May 21, 2026
Updated: affectedVersions
May 21, 2026
Updated: description
May 21, 2026
Updated: description
May 22, 2026
Updated: description
May 22, 2026
Updated: exploitAvailable, activelyExploited
May 22, 2026

Version History

v6
Last enriched 17d ago
v6Tier D17d ago

Updated affected versions to include 3.10.8.3, marked exploit as available, and noted that the vulnerability is actively exploited.

exploitAvailableactivelyExploited
via Heise Security
v5Tier D17d ago

Updated description with technical details, added affected version 3.10.8.3, and marked exploit as available and actively exploited.

description
via Heise Security
v4Tier D17d ago

Updated vendor to Cisco, added description about insufficient validation and authentication, and marked exploit as available and actively exploited.

description
via The Hacker News
v3Tier D18d ago

Updated vendor to Cisco, added affected version 3.10.8.3, marked exploit as available and actively exploited, and provided a more detailed description of the vulnerability.

description
via CSO Online
v2Tier D18d ago

Updated vendor to Cisco, added new affected version 3.10.8.3, and confirmed CVSS score of 10.0.

affectedVersions
via SecurityWeek
v119d ago

Initial creation