CVE-2026-81683Hinoki check available

Local mTLS key disclosure via world-readable preferences

Published Aug 27, 2026 · Updated Aug 27, 2026

Cleartext key storage in OpenSSL Encrypt 1.4.8 and earlier allows local users to read an mTLS client private key. The desktop GUI Settings screen saves the combined certificate and private key PEM value unencrypted in a 0644 SharedPreferences file. Local file-system access and prior use of that Settings field are required; exposure is limited to disclosure of the stored client key.

CVSS severity8.6
High
EPSS probability0.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Cleartext key storage in OpenSSL Encrypt 1.4.8 and earlier allows local users to read an mTLS client private key. The desktop GUI Settings screen saves the combined certificate and private key PEM value unencrypted in a 0644 SharedPreferences file. Local file-system access and prior use of that Settings field are required; exposure is limited to disclosure of the stored client key.

The record

CVE
CVE-2026-81683
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
jahlives
Product
OpenSSL Encrypt
Classifications
CWE-312, T1552.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=0 <1.4.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

jahlives · OpenSSL Encryptversion=0 <1.4.9

Published CVSS scores

8.4NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6VulnCheck CNACVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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