A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices. Under specific network conditions involving dropped packets and out-of-order sequence counters, the server may incorrectly process fragmented data chunks. If a sequence reset notification fails to reach the server, the server may reject the initial data chunk while erroneously accepting subsequent chunks before a connection reset completes.
This leads to the registration of a truncated badge ID string. While this typically results in an authentication failure, the vulnerability is compounded in environments utilizing custom badge-ID post-processing scripts. In such configurations, the truncated string may be transformed into a valid ID belonging to a different user, leading to unauthorized session establishment (Incorrect User Login) on the device.
References
| Link | Resource |
|---|---|
| https://www.papercut.com/kb/Main/papercut-ng-mf-and-papercut-hive-security-bulletin-may-2026/ | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
12 May 2026, 19:04
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Papercut papercut Mf
Papercut Papercut papercut Ng |
|
| References | () https://www.papercut.com/kb/Main/papercut-ng-mf-and-papercut-hive-security-bulletin-may-2026/ - Vendor Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.1 |
| CPE | cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:* cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:* |
05 May 2026, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-05 07:16
Updated : 2026-05-12 19:04
NVD link : CVE-2026-6180
Mitre link : CVE-2026-6180
CVE.ORG link : CVE-2026-6180
JSON object : View
Products Affected
papercut
- papercut_mf
- papercut_ng