EUVD-2026-64172Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Network-accessible unauthenticated endpoint with no complexity; confidentiality impact is low (metadata only) with no integrity or availability effect.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
3DescriptionCVE.org
CrossWatch (CW) is a synchronization engine. Prior to version 0.9.21, GET /api/app-auth/status is accessible without authentication and returns the other_sessions array, which exposes metadata of all active sessions - including originating IP addresses, User-Agent strings, internal session IDs, and creation/expiry timestamps. Any unauthenticated network attacker can enumerate this data without credentials. Version 0.9.21 fixes the issue.
AnalysisAI
Unauthenticated information disclosure in CrossWatch prior to v0.9.21 allows any network-accessible attacker to enumerate active session metadata via GET /api/app-auth/status, including originating IP addresses, User-Agent strings, internal session IDs, and creation/expiry timestamps. All CrossWatch deployments running versions before 0.9.21 with a network-accessible API are affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - the GET /api/app-auth/status endpoint is accessible to any unauthenticated attacker with HTTP network access against default CrossWatch deployments prior to v0.9.21. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.3 Medium score with vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N accurately characterizes this vulnerability's profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to CrossWatch version 0.9.21, confirmed by the vendor release at https://github.com/cenodude/CrossWatch/releases/tag/v0.9.21. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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