CVE-2026-81688

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-81688

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81688.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-81688

Aliases

GHSA-7c3q-gp4v-q29q
PYSEC-2026-3795

Published

2026-08-27T14:50:53Z

Modified

2026-09-04T03:47:25Z

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 Plaintext Confirmation Oracle via SHA-256

Details

openssl_encrypt versions before 1.4.9 store an unkeyed SHA-256 hash of the plaintext in the cleartext file header metadata. Attackers can read this hash without the password to confirm guessed plaintexts offline or fingerprint identical plaintexts across separately-encrypted files.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-311"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81688.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-2026-81688.json"