CVE-2026-8793

Summary

PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.

Affected Software

Weaknesses

• CWE-307: CWE-307 Improper restriction of excessive authentication attempts

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-3-aug-2026/

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