HmacShaCryptor.Hash never hashes its input — returns constant HMAC_K("") for all inputs, voiding CBC-HMAC JWE integrity
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Eclipse Foundation | Eclipse KeyPont - GOSE | unaffected |
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| Eclipse Foundation | Eclipse KeyPont - GOSE | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Eclipse | Keypont-gose |
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| Eclipse | Keypont-gose |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.174% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Eclipse
Eclipse keypont-gose |
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| Vendors & Products |
Eclipse
Eclipse keypont-gose |
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| Description | `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. | |
| Title | HmacShaCryptor.Hash never hashes its input — returns constant HMAC_K("") for all inputs, voiding CBC-HMAC JWE integrity | |
| Weaknesses | CWE-354 | |
| References |
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| Metrics |
cvssV4_0
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