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Not in CISA KEV
MEDIUM severity

AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata fieldGHSA-6jvc-q2x7-pchv

MEDIUMFix: aws/aws-sdk-go@35fa6dd

GHSA-6jvc-q2x7-pchv is a medium-severity (CVSS 4.3) CWE-326 vulnerability in github.com/aws/aws-sdk-go. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for github.com/aws/aws-sdk-go — see the affected versions and patch details below.

Also known asCVE-2022-2582GHSA-76wf-9vgp-pj7wGO-2022-0391
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-6jvc-q2x7-pchv.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs44th percentile — riskier than 44% of all scored CVEsHighest risk
0.00%0.34%0.68%1.01%0.1%0.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/aws/aws-sdk-go

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

The AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field. This hash can be used to brute force the plaintext, if the hash is readable to the attacker. AWS now blocks this metadata field, but older SDK versions still send it.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/aws/aws-sdk-goall versions1.34.0go get github.com/aws/aws-sdk-go@v1.34.0

Affected Products

1 product · 1 configurations
Application
aws software development kitamazon
< 1.34.0
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

The AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongsi…

pkg.go.devNVDJan 2023

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/aws/aws-sdk-go, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/aws/aws-sdk-go to 1.34.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-6jvc-q2x7-pchv is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

The AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field. This hash can be used to brute force the plaintext, if the hash is readable to the attacker. AWS now blocks this metadata field, but older SDK versions still send it.
O3 Security · Impact-Aware SCA

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AWS S3 Crypto SDK sends an unencrypted hash of the…