CVE-2026-74889

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Source

https://cve.org/CVERecord?id=CVE-2026-74889

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74889.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-74889

Aliases

GHSA-j9mh-57cc-665x

Published

2026-08-17T11:04:53.146Z

Modified

2026-08-19T03:48:58.940951181Z

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 CVSS Calculator

Summary

openssl_encrypt before 1.4.0 Weak Key Derivation via HKDF

Details

openssl_encrypt versions before 1.4.0 use HKDF with no salt and static info parameter in key normalization functions, reducing entropy extraction and determinism. Attackers can exploit predictable key derivation with identical inputs to weaken cryptographic security against multi-target attacks.

Database specific

{
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74889.json",
    "cwe_ids": [
        "CWE-326"
    ]
}

References

Affected packages

Git / github.com/jahlives/openssl_encrypt

Affected ranges

Type

GIT

Repo

https://github.com/jahlives/openssl_encrypt

Events

Introduced

Fixed

768df5cd1910e349509f07a27eeac6951e0003bf

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74889.json"