PaperCut NG/MF unauth admin config plus class-loading
PaperCut NG/MF is affected by an unauthenticated admin configuration path combined with class-loading risk. Apply vendor patches promptly.
Also tracked as CVE-2026-81578 · PaperCut NG/MF auth bypass
- First observed
- Aug 28, 2026
- Last observed
- Aug 28, 2026
- Last reviewed
- Sep 20, 2026
- Tracking ended
- Aug 28, 2026
Uncertainty and limitations
Read the evidence limits before acting on this record.
Confirm exact fixed builds against the live PaperCut advisory.
- Exact fixed builds must come from the vendor advisory.
- HOL blog is operator guidance.
Timeline
Reviewed events, oldest first, each tied to a verified source.
- Disclosure
CVE-2026-81578 PaperCut NG/MF auth bypass / class-loading disclosed.
- Update
HOL Guard published operator coverage.
Publication clock: 572.0 hours from reviewed disclosure timestamp to HOL publication; 12-hour critical target; historical backfill outside target.
Guard coverage and non-coverage
What Guard's reviewed coverage assertions do and do not claim for this campaign.
No Guard coverage mapping is published for this record.
Defensive policy guidance
Reviewed starting points for defending against this campaign's artifact classes.
No campaign-specific policy guidance is published.
Reviewed artifacts and indicators
Published values are defanged (for example hxxps and [.] blocks) so nothing here is copy-paste executable.
Reviewed artifacts
The specific artifacts this record concerns, as reviewed. Names and versions are shown as text; a registry link is not recorded here.
PaperCut NG/MFgenericpackage
Sources
Every claim on this record is traceable to the sources below.
Reviewed in full by HOL Guard Security Publishing.
- Published
- Last full review
- Last modified
Record HGTC-2026-80D3A46B.