Skip to main content

openssl-encrypt EUVDEUVD-2026-67039

| CVE-2026-81683 HIGH
Cleartext Storage of Sensitive Information (CWE-312)
2026-08-27 VulnCheck GHSA-p8vp-h9v2-m833
Information Disclosure OpenSSL Openssl Encrypt
8.6
CVSS 4.0 · Vendor: VulnCheck
Share

Severity by source

Vendor (VulnCheck) PRIMARY
8.6 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.7 HIGH

Local vector, no privileges needed (world-readable file), high C and I for private key theft enabling impersonation; no direct availability impact.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Aug 27, 2026 - 18:02 EUVD
Analysis Generated
Aug 27, 2026 - 17:44 vuln.today
CVE Published
Aug 27, 2026 - 14:50 cve.org
HIGH 8.6

DescriptionCVE.org

openssl_encrypt (pip package openssl-encrypt) versions 1.4.8 and earlier store an mTLS client private key in cleartext within a world-readable (0644) SharedPreferences file via the desktop GUI's Settings screen 'combined certificate and private key' PEM field. A local attacker with file system access can read the exposed private key. Version 1.4.9 writes the PEM to a dedicated 0600 file, keeps only its path in SharedPreferences, and migrates/scrubs existing cleartext values.

Articles & Coverage 1

News 11 New OpenSSL Vulnerabilities - 4 Critical, 7 High Severity Aug 28, 2026

AnalysisAI

Cleartext private key exposure in openssl-encrypt (pip package by jahlives) versions 1.4.8 and earlier allows any local user to read a stored mTLS client private key from a world-readable SharedPreferences file. The desktop GUI's Settings screen writes the combined certificate and private key PEM directly into a 0644-permissioned file, making it accessible to all local users on the system without elevated privileges. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Gain local user access on target host
Delivery
Locate world-readable SharedPreferences file written by openssl-encrypt GUI
Exploit
Read cleartext mTLS private key PEM
Execution
Extract key and associated certificate
Impact
Authenticate to mTLS-protected backend service as impersonated client
Sign in to reveal

Vulnerability AssessmentAI

Exploitation The vulnerable condition requires: (1) the openssl-encrypt desktop GUI must have been run and the Settings screen used to configure a combined certificate and private key PEM, creating the world-readable SharedPreferences file; (2) the attacker must have local filesystem read access to the machine where the application is installed - remote exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 8.6 with AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H reflects trivially low exploitation complexity for any local user: reading a 0644 file requires no special tools, no privileges, and no user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A local user on a shared system - such as a developer workstation, build server, or CI environment - runs a simple file read command against the known or discoverable SharedPreferences path left by the openssl-encrypt GUI. Because the file carries 0644 permissions, no privilege escalation is required. …
Remediation Upgrade to openssl-encrypt version 1.4.9 or later, which is the vendor-released patched version. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Recommended ActionAI

Within 24 hours: Inventory all systems running openssl-encrypt versions 1.4.8 or earlier and audit the file permissions of SharedPreferences directories-restrict any world-readable files to 0600 (owner read/write only). …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

More in OpenSSL

View all
CVE-2014-0160 HIGH POC
7.5 Apr 07

The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packe
CVE-2014-0195 MEDIUM POC
6.8 Jun 05

The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0
CVE-2014-0224 HIGH POC
7.4 Jun 05

OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly restrict processing of ChangeCiph
CVE-2016-0800 MEDIUM POC
5.9 Mar 01

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to se
CVE-2015-0204 MEDIUM POC
4.3 Jan 09

The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k

CVE-2014-3566 LOW POC
3.4 Oct 15

The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which mak
CVE-2016-2107 MEDIUM POC
5.9 May 05

The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h does not consider memory allocation during a

CVE-2015-1793 MEDIUM POC
6.5 Jul 09

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly

CVE-2022-3602 HIGH
7.5 Nov 01

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Rated hig
CVE-2014-3470 MEDIUM
4.3 Jun 05

The ssl3_send_client_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before
CVE-2017-3730 HIGH POC
7.5 May 04

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this

CVE-2016-8610 HIGH
7.5 Nov 13

A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL proto

Same weakness CWE-312 – Cleartext Storage of Sensitive Information

View all
CVE-2025-22896 CRITICAL POC
9.2
CVE-2023-31069 CRITICAL POC
9.8
CVE-2022-26148 CRITICAL POC
9.8
CVE-2021-29954 CRITICAL POC
9.8
CVE-2020-5723 CRITICAL POC
9.8
CVE-2019-19228 CRITICAL POC
9.8
CVE-2019-13096 CRITICAL POC
9.8
CVE-2019-11384 CRITICAL POC
9.8

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5
CVE-2014-6324 HIGH POC
8.8

Share

EUVD-2026-67039 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy