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LeafPad / Leaf Note insecure permissions let attackers read other users' notes

Priority HIGH 80CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.

Summary

LeafPad / Leaf Note v1.21 (versionCode 21) has insecure permissions (CWE-284) that let unauthorized attackers read another user's note data. A remote attacker needs no privileges and no user interaction to exploit the flaw over the network.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

Insecure permissions in LeafPad / Leaf Note v1.21 (versionCode 21) allows unauthorized attackers to arbitrarily read another user's note data.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00366 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for LeafPad / Leaf Note.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-107034
  2. 2026-10-29 Alias added: GHSA-hrh8-3f97-px39
  3. 2026-10-30 CVSS score added · CISA ADP
  4. 2026-10-30 Weakness changed · CISA ADP
  5. 2026-10-30 CISA SSVC decision points changed
  6. 2026-10-30 Priority changed: LOW → HIGH

References

Sources