PT-2026-32497 · Pachno · Pachno

Published 2026-04-13 · Updated 2026-04-14 · CVE-2026-40043

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Pachno version 1.0.6

Description An authentication bypass in the runSwitchUser() action allows authenticated low-privilege users to escalate privileges by manipulating the original username cookie. By setting this client-controlled cookie to any value and requesting a switch to user ID 1, an attacker can obtain session tokens or password hashes belonging to administrator accounts.

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

Exploit

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-40043

Affected Products

Pachno

References · 6

• 🔥 https://zeroscience.mk/#/advisories/ZSL-2026-5985 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-40043 · Security Note
• https://twitter.com/CVEnew/status/2043976217674527047 · Twitter Post
• https://vulncheck.com/advisories/pachno-authentication-bypass-via-runswitchuser · Note
• https://twitter.com/infoflowcloud/status/2043977897057087492 · Twitter Post
• https://zeroscience.mk/en/vulnerabilities/ZSL-2026-5985.php · Note