PYSEC-2026-3779

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/openssl-encrypt/PYSEC-2026-3779.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-3779
Aliases
Published
2026-08-27T17:21:00.833Z
Modified
2026-09-02T09:00:05.129139590Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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 versions before 1.4.9 fail to validate encryption status of embedded post-quantum private keys in file metadata. Attackers can craft files with unencrypted embedded PQC keys that decrypt under any password, bypassing authentication and producing attacker-chosen plaintext with false integrity verification.

References

Affected packages

PyPI / openssl-encrypt

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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-2026-3779.yaml"