CVE-2026-53497

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.

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-25)

CWEs

CWE-200, CWE-359

Published

2026-08-21

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

References

• https://github.com/cenodude/CrossWatch/releases/tag/v0.9.21
• https://github.com/cenodude/CrossWatch/security/advisories/GHSA-rv3j-r4h5-q3cj
• https://github.com/cenodude/CrossWatch/security/advisories/GHSA-rv3j-r4h5-q3cj

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