Description
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.
Published: 2026-09-11
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Denial of service in the event stream header decoder in AWS SDK for Go v2
First Time appeared Aws
Aws aws Sdk For Go V2
Weaknesses CWE-248
CPEs cpe:2.3:a:aws:aws_sdk_for_go_v2:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws aws Sdk For Go V2
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Aws Aws Sdk For Go V2
cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-09-11T19:20:01.797Z

Reserved: 2026-09-10T20:14:45.885Z

Link: CVE-2026-89090

cve-icon Vulnrichment

Updated: 2026-09-11T19:19:54.803Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-11T18:17:00.097

Modified: 2026-09-11T20:19:22.680

Link: CVE-2026-89090

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses