What’s Vulnerable › Vulnerabilities

CVE-2024-23680: AWS Encryption SDK for Java Improper Verification of Cryptographic Signature

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-19 · updated 2026-07-14
• Weakness: CWE-347

Description

AWS Encryption SDK for Java versions 2.0.0 to 2.2.0 and less than 1.9.0 incorrectly validates some invalid ECDSA signatures.

Affected products

• Amazon AWS SDK: before 1.9.0; from 2.0.0 before 2.2.0 — fixed in 1.9.0, 2.2.0

How to fix

Upgrade to a fixed version: Amazon AWS SDK 1.9.0, 2.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/advisories/GHSA-55xh-53m6-936r
• https://github.com/aws/aws-encryption-sdk-java/security/advisories/GHSA-55xh-53m6-936r
• https://vulncheck.com/advisories/vc-advisory-GHSA-55xh-53m6-936r
• https://github.com/advisories/GHSA-55xh-53m6-936r
• https://github.com/aws/aws-encryption-sdk-java/security/advisories/GHSA-55xh-53m6-936r
• https://vulncheck.com/advisories/vc-advisory-GHSA-55xh-53m6-936r

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