Description (CNA)
Cryptographic algorithm downgrade in the caching layer of Amazon AWS Encryption SDK for Python before version 3.3.1 and before version 4.0.5 might allow an authenticated local threat actor to bypass key commitment policy enforcement via a shared key cache, resulting in ciphertext that can be decrypted to multiple different plaintexts. To remediate this issue, users should upgrade to version 3.3.1, 4.0.5 or above.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| AWS / AWS Encryption SDK for Python | affected 2 through 2.5.1; affected 3 through 3.3.0; affected 4 through 4.0.4 |
CWE
CWE-757
References
- https://aws.amazon.com/security/security-bulletins/2026-017-aws/
- https://github.com/aws/aws-encryption-sdk-python/releases/tag/v4.0.5
- https://github.com/aws/aws-encryption-sdk-python/releases/tag/v3.3.1
- https://github.com/aws/aws-encryption-sdk-python/security/advisories/GHSA-v638-38fc-rhfv
ADP enrichment
No English description supplied.
No references supplied.