PYSEC-2026-3791

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/openssl-encrypt/PYSEC-2026-3791.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-3791
Aliases
Published
2026-08-27T17:20:57Z
Modified
2026-09-03T11:00:04Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/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 CVSS Calculator
Summary
[none]
Details

openssl_encrypt (pip package openssl-encrypt) versions <= 1.4.8 advertise a portable USB workspace as an 'Encrypted USB Workspace' with AES-256-GCM encryption and write a marker declaring the workspace encrypted, but the workspace directory is actually stored in cleartext and the derived encryption key is never applied to it. A user who trusts the branding and places files in the workspace leaves them unencrypted on the removable media, so an attacker with physical access to the media can read the sensitive files. Fixed in 1.4.9, which seals the workspace into an authenticated AES-256-GCM vault.

References

Affected packages

PyPI / openssl-encrypt

Package

Name
openssl-encrypt
View open source insights on deps.dev
Purl
pkg:pypi/openssl-encrypt

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.4.9

Affected versions

0.*
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.3.0
0.3.1
0.3.2
0.3.3
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.5.0
0.5.1
0.5.3
0.6.0rc1
0.7.0rc2
0.7.1
0.7.2
0.8.0
0.8.1
0.8.2
0.9.2
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.1.0
1.2.0
1.2.1
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.4.0b3
1.4.0b4
1.4.0b5
1.4.0b6
1.4.0b7
1.4.0b8
1.4.0
1.4.1rc2
1.4.1
1.4.2
1.4.4
1.4.5
1.4.6
1.4.7
1.4.8

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/openssl-encrypt/PYSEC-2026-3791.yaml"