CVE-2026-8794PaperCut NG/MF: User enumeration via timing attack
Updated under an hour ago ()
Does this affect you?
It affects PaperCut NG/MF. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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PaperCut NG/MF contains an observable timing discrepancy in its authentication component. An unauthenticated remote attacker can exploit this vulnerability to perform username enumeration by measuring response times during login attempts. The system executes a password hash comparison only when a valid account is supplied, creating a measurable timing oracle that reveals account existence.
- CVSS
- 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- PaperCut
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
PaperCut PaperCut NG/MF papercut:ng_mf (from the name) | before 26.0.3 | CNA record |
References
- https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-3-aug-2026/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.