A server-side request forgery issue due to improper validation of equivalent address representations in the port forwarding to remote hosts…
A server-side request forgery issue due to improper validation of equivalent address representations in the port forwarding to remote hosts functionality in Amazon AWS Systems Manager Agent (SSM Agent) before 3.3.4851.0 on all platforms might allow an authenticated remote user to bypass the remote destination denylist and reach link-local endpoints, potentially obtaining the temporary IAM role credentials of a managed instance and acting with that role's permissions from outside the instance, via a crafted destination host value that uses an alternate representation of a denied link-local addr
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Amazon Web Services
- Product
- AWS services
- CVSS
- 9.9
- Exposure class
- Cloud platform
Why it ranks 23 (Routine)
- CVSS 9.9 critical
- Product class: cloud platform
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-89049 on this site · NVD · CVE.org · Vulnpedia
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