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HIGH severity

CVE-2022-2385 — aws-iam-authenticator

HIGHFix: kubernetes-sigs/aws-iam-authenticator#469

CVE-2022-2385 is a high-severity (CVSS 8.1) Improper Input Validation vulnerability in sigs.k8s.io/aws-iam-authenticator. A fix is available for sigs.k8s.io/aws-iam-authenticator — see the affected versions and patch details below.

AccessKeyID validation bypass

Also known asGHSA-pp3f-98qg-5g75GO-2022-0547
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs66th percentile — riskier than 66% of all scored CVEsHighest risk
0.00%0.53%1.07%1.60%0.3%1.1%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
🐹sigs.k8s.io/aws-iam-authenticator

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

A security issue was discovered in aws-iam-authenticator where an allow-listed IAM identity may be able to modify their username and escalate privileges.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gosigs.k8s.io/aws-iam-authenticatorall versions0.5.9go get sigs.k8s.io/aws-iam-authenticator@v0.5.9

Affected Products

1 product · 1 configurations
Application
aws-iam-authenticatorkubernetes
≥ 0.5.2 && < 0.5.9
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sigs.k8s.io/aws-iam-authenticator, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update sigs.k8s.io/aws-iam-authenticator to 0.5.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-2385 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

A security issue was discovered in aws-iam-authenticator where an allow-listed IAM identity may be able to modify their username and escalate privileges.
O3 Security · Impact-Aware SCA

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CVE-2022-2385: aws-iam-authenticator — Fixed in 0.5.9