CVE-2026-89090

An unrecovered panic in the event stream header decoder in Amazon AWS SDK for Go v2 before release-2026-03-23 might allow an unauthenticated remote actor to terminate the consuming application process via a crafted event stream response frame containing a header value type outside the valid range. To remediate this issue, users should upgrade to release-2026-03-23 or later, and patch any forked or derivative code.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-110-aws/
https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23
https://github.com/aws/aws-sdk-go-v2/security/advisories/GHSA-xmrv-pmrh-hhx2

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 18:17

Updated : 2026-09-11 20:19

NVD link : CVE-2026-89090

Mitre link : CVE-2026-89090

CVE.ORG link : CVE-2026-89090

JSON object : View

Products Affected

No product.

CWE

CWE-248

Uncaught Exception

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