CVE-2026-6550
CVE-2026-6550 · Key commitment policy bypass via shared key cache in AWS Encryption SDK for Python
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 5.7 · Media · EPSS 0,1% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: python
Productos y versiones afectados
aws encryption sdk for python
- Versiones
- ≥ 2, ≤ 2.5.1: Afectada (custom)
- ≥ 3, ≤ 3.3.0: Afectada (custom)
- ≥ 4, ≤ 4.0.4: Afectada (custom)
Sin corrección publicada
aws-encryption-sdk PyPI
- Versiones
- 2.0.0
- 2.1.0
- 2.2.0
- 2.3.0
- 2.4.0
- 2.5.0
- 2.5.1
- 3.0.0
- 3.1.0
- 3.1.1
- 3.2.0
- 3.3.0
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 2.0.0, < 3.3.1
Actualiza a 3.3.1
aws-encryption-sdk PyPI
- Versiones
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 4.0.0, < 4.0.5
Actualiza a 4.0.5
aws-encryption-sdk PyPI
- Versiones
- 2.0.0
- 2.1.0
- 2.2.0
- 2.3.0
- 2.4.0
- 2.5.0
- 2.5.1
- 3.0.0
- 3.1.0
- 3.1.1
- 3.2.0
- 3.3.0
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- Intervalos de versiones afectados
- ECOSYSTEM: ≥ 2.0.0, < 3.3.1 ∪ ≥ 4.0.0, < 4.0.5
Actualiza a 3.3.1; Actualiza a 4.0.5
Fuentes originales
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-6550