Vulnerability · Published Aug 21, 2026 · Assigned by GitHub_M

CVE-2026-53497CrossWatch: Unauthenticated /api/app-auth/status endpoint leaks active session metadata (IP, User-Agent, session IDs)

Medium 5.3

In plain English

A medium-severity information exposure in CrossWatch from cenodude. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.4%top 66.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
cenodude	CrossWatch	< 0.9.21

Weakness: CWE-200, CWE-359 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

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