CVE-2026-73230

Secret recovery via exposed per-card checksum

Published Aug 11, 2026 · Updated Aug 11, 2026

Information disclosure in Ente 2of3 before 2026.07.28 allows local users with one version 1 card to recover guessable secrets offline. The version 1 card serializer writes the secret's byte length and 32-bit FNV-1a checksum in the clear rather than protecting the checksum with the two-card share threshold. Possession of one card is required, and recovery is practical only for low-entropy or predictable secrets that can be tested against those values.

CVSS severity5.9
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Ente 2of3 before 2026.07.28 allows local users with one version 1 card to recover guessable secrets offline. The version 1 card serializer writes the secret's byte length and 32-bit FNV-1a checksum in the clear rather than protecting the checksum with the two-card share threshold. Possession of one card is required, and recovery is practical only for low-entropy or predictable secrets that can be tested against those values.

The record

CVE
CVE-2026-73230
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Ente
Product
Ente
Classifications
CWE-200
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.07.28

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Ente · Enteversion=< 2026.07.28

Published CVSS scores

5.9GitHub, Inc.CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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