GHSA-3g75-q268-r9r6: github.com/aws/amazon-s3-encryption-client-go (CVE-2025-14764)

Amazon S3 Encryption Client has a Key Commitment Issue in github.com/aws/amazon-s3-encryption-client-go

CVSS 6.0 MediumEPSS 0.0011 · 1st percentile

Published by the GitHub Advisory Database at 22 Dec 2025, 18:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
github.com/aws/amazon-s3-encryption-client-go	Go	all versions	No fixed version yet
github.com/aws/amazon-s3-encryption-client-go/v3	Go	all versions	No fixed version yet
github.com/aws/amazon-s3-encryption-client-go/v4	Go	<4.0.0	4.0.0

Identifiers

GHSA-3g75-q268-r9r6 · CVE-2025-14764 · GO-2025-4250

Weakness (CWE)

CWE-327

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The github.com/aws/amazon-s3-encryption-client-go module and its /v3 path are affected at all versions, with no fixed version listed. The /v4 module is affected before 4.0.0 and fixed in 4.0.0. The source gives few details on the issue or what an attacker needs. Upgrade the /v4 module to 4.0.0 or later.

Written 10 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.0	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N	CNA (AMZN)

CISA KEV Not listed.
EPSS 0.0011, the 1st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 22 Dec 2025. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.