CVE-2026-81689

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Source

https://cve.org/CVERecord?id=CVE-2026-81689

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81689.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-81689

Aliases

GHSA-3v63-778v-3mvp
PYSEC-2026-3959

Published

2026-08-27T14:50:54Z

Modified

2026-09-10T13:10:34Z

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 CVSS Calculator

Summary

openssl_encrypt before 1.4.9 Weak Pepper Key Derivation

Details

openssl_encrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password, allowing identical keys across all users and files. Attackers with access to wrapped pepper blobs can precompute a single dictionary table and perform fleet-wide offline password guessing at hardware speed to recover user passwords.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-916"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81689.json"
}

References

Affected packages

Git / github.com/jahlives/openssl_encrypt

Affected ranges

Type

GIT

Repo

https://github.com/jahlives/openssl_encrypt

Events

Introduced

Fixed

39b0a010cae90520f74b7194f61fedd43af04ef8

Database specific

Show details

{
    "cpe": "cpe:2.3:a:jahlives:openssl_encrypt:*:*:*:*:*:python:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.9"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

v1.*

v1.4.0

v1.4.1rc1

v1.4.1rc2

v1.4.2

v1.4.4

v1.4.5

v1.4.6

v1.4.7

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81689.json"