CVE-2026-89320

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Source

https://cve.org/CVERecord?id=CVE-2026-89320

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89320.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-89320

Aliases

GHSA-h6w5-722x-2h3m

Published

2026-10-23T08:56:20Z

Modified

2026-11-04T02:30:49Z

Severity

8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

HmacShaCryptor.Hash never hashes its input — returns constant HMAC_K("") for all inputs, voiding CBC-HMAC JWE integrity

Details

HmacShaCryptor.Hash never hashed its input. For any input it returned HMAC_K("") — the MAC of the empty message under the key. Every AES-CBC-HMAC JWE produced or verified by gose therefore carried an authentication tag that is constant per key and independent of the message, removing ciphertext integrity entirely.

Database specific

{
    "cna_assigner": "eclipse",
    "cwe_ids": [
        "CWE-354"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89320.json"
}

References

Affected packages

Git / github.com/eclipse-keypont/gose

Affected ranges

Type

GIT

Repo

https://github.com/eclipse-keypont/gose

Events

Introduced

4b6dc6c722b20dc24cac70da52704b6027810e69

Last Affected

bc195a14438f6607e266d8a12e529260272b060b

Introduced

Fixed

3d12061410a75212322bd51c7c91a56b7dfbcea6

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.9.0"
                },
                {
                    "last_affected": "0.13.0-rc1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.0.0-rc1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

v0.*

v0.10.0

v0.12.0

v0.12.1-rc1

v0.13.0-rc1

v0.9.0

v0.9.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89320.json"