A AegiFlow
MEDIUMCVSS 5.3EPSS 0.3%

CVE-2026-58272

CVE-2026-58272 updated by NVD

Published
2026-09-22
Modified
2026-10-02
EPSS percentile
21%
Sources
github-advisory, nvd

Summary

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Versions prior to 2.4.1 contain an observable timing discrepancy in the login endpoint because authentication attempts for nonexistent accounts return without performing the bcrypt comparison used for existing accounts. An unauthenticated attacker can measure response times to enumerate valid usernames or email addresses, facilitating credential-stuffing, password-spraying, and phishing attacks. Version 2.4.1 contains a patch.

Affected packages

EcosystemPackageAffected versionsFixed versions
npm@sync-in/server—2.4.1

Remediation: Upgrade to 2.4.1 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.