CVE-2025-14764Missing cryptographic key commitment in the Amazon S3 Encryption Client for Go may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the…
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Does this affect you?
It affects AWS S3 Encryption Client for Go. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Missing cryptographic key commitment in the Amazon S3 Encryption Client for Go may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an "instruction file" instead of S3's metadata record. To mitigate this issue, upgrade Amazon S3 Encryption Client for Go to version 4.0 or later.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-327
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- AMZN
- NVD analysis
- Deferred
- Record last updated
- Dec 17, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AWS S3 Encryption Client for Go aws:s3_encryption_client_for_go (from the name) | 4.0 not affected | CNA record |
References
- https://aws.amazon.com/security/security-bulletins/AWS-2025-032/vendor-advisory
- https://github.com/aws/amazon-s3-encryption-client-go/security/advisories/GHSA-3g75-q268-r9r6third-party-advisory
- https://github.com/aws/amazon-s3-encryption-client-go/releases/tag/v4.0.0patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.