HmacShaCryptor.Hash never hashes its input — returns constant HMAC_K("") for all inputs, voiding CBC-HMAC JWE integrity
`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.
CVE-2026-89320
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89320
Eclipse KeyPont - GOSE
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Eclipse KeyPont - GOSE
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Eclipse Foundation",
"product": "Eclipse KeyPont - GOSE",
"versions": [
{
"status": "affected",
"version": "0.9.0",
"versionType": "semver",
"lessThanOrEqual": "0.13.0-rc1"
}
],
"packageName": "github.com/ThalesGroup/gose",
"defaultStatus": "unaffected"
},
{
"vendor": "Eclipse Foundation",
"product": "Eclipse KeyPont - GOSE",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.0.0-rc1",
"versionType": "semver"
}
],
"packageName": "github.com/eclipse-keypont/gose",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-89320
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #52630 · Revision 1
- Added to Heist Feed
- Publisher date