PT-2026-57844 · Rejetto · Rejetto Hfs

Published 2026-07-13 · Updated 2026-07-13 · CVE-2026-61503

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Rejetto HFS versions 3.0.0 through 3.2.0

Description An issue exists where the login endpoint returns different responses based on whether the submitted username exists. This allows a remote unauthenticated attacker to perform user enumeration, confirming valid account names, including the default admin account, which can facilitate password-guessing and session-forgery attacks.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-204

Related Identifiers

CVE-2026-61503

Affected Products

Rejetto Hfs

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-61503 · Security Note
• https://github.com/rejetto/hfs/releases/tag/v3.2.1 · Patch
• https://vulncheck.com/advisories/rejetto-hfs-username-enumeration-via-login-response-differences · Note
• https://twitter.com/VulmonFeeds/status/2076790931286544840 · Twitter Post