The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard's required implicit rejection.
Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 26 Jun 2026 11:30:00 +0000
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ssvc
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Fri, 26 Jun 2026 01:30:00 +0000
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Wolfssl
Wolfssl wolfssl |
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| Vendors & Products |
Wolfssl
Wolfssl wolfssl |
Thu, 25 Jun 2026 21:30:00 +0000
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| Description | The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard's required implicit rejection. | |
| Title | ML-KEM ARM64 NEON ciphertext comparison only compares half of the input | |
| Weaknesses | CWE-327 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: wolfSSL
Published:
Updated: 2026-06-26T10:20:49.418Z
Reserved: 2026-04-15T03:08:30.514Z
Link: CVE-2026-6330
Updated: 2026-06-26T10:20:42.712Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-26T01:15:04Z
Weaknesses