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Vulnerability details: VCID-6rk4-9zxf-vuep
Vulnerability ID VCID-6rk4-9zxf-vuep
Aliases GHSA-x5h4-9gqw-942j
GMS-2021-5
Summary Improper Verification of Cryptographic Signature in aws-encryption-sdk This advisory addresses several LOW severity issues with streaming signed messages and restricting processing of certain types of invalid messages. This ESDK supports a streaming mode where callers may stream the plaintext of signed messages before the ECDSA signature is validated.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-347 Improper Verification of Cryptographic Signature
System Score Found at
generic_textual MODERATE https://github.com/aws/aws-encryption-sdk-python/security/advisories/GHSA-x5h4-9gqw-942j
Reference id Reference type URL
GHSA-x5h4-9gqw-942j https://github.com/advisories/GHSA-x5h4-9gqw-942j
GHSA-x5h4-9gqw-942j https://github.com/aws/aws-encryption-sdk-python/security/advisories/GHSA-x5h4-9gqw-942j
No exploits are available.

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-04T16:21:29.763629+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/aws-encryption-sdk/GMS-2021-5.yml 38.6.0