Vulnerability DatabaseWS-2026-0064
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WS-2026-0064
Published:April 07, 2026
Updated:September 08, 2026
Denial of service in the EventStream header decoder of the AWS SDK for Go v2. "decodeHeaderValue" in aws/protocol/eventstream/header.go panics on a header value type byte outside the valid range, and "valueFromType" in debug.go panics likewise, so a malformed EventStream response frame from a remote endpoint terminates the host process. Fixed on 2026-03-23 by returning an error instead of panicking, released as aws/protocol/eventstream v1.7.8 and the corresponding service module versions.
Affected Packages
https://github.com/aws/aws-sdk-go-v2.git (GITHUB):
Affected version(s) >=aws/protocol/eventstream/v1.0.0 <aws/protocol/eventstream/v1.7.8
Fix Suggestion:
Update to version aws/protocol/eventstream/v1.7.8
github.com/aws/aws-sdk-go-v2/service/bedrockruntime (GO):
Affected version(s) >=v0.0.0-20250311184753-6d110cbf3144 <v1.50.4
Fix Suggestion:
Update to version v1.50.4
github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream (GO):
Affected version(s) >=v1.0.0 <v1.7.8
Fix Suggestion:
Update to version v1.7.8
github.com/aws/aws-sdk-go-v2/service/lexruntimev2 (GO):
Affected version(s) >=v0.0.0-20250311184753-6d110cbf3144 <v1.35.15
Fix Suggestion:
Update to version v1.35.15
github.com/aws/aws-sdk-go-v2/service/kinesis (GO):
Affected version(s) >=config/v0.1.0 <v1.43.5
Fix Suggestion:
Update to version v1.43.5
github.com/aws/aws-sdk-go-v2/service/cloudwatchlogs (GO):
Affected version(s) >=f22e9c941683ab78daf6ce81da46bde24a22bc18 <v1.65.0
Fix Suggestion:
Update to version v1.65.0
github.com/aws/aws-sdk-go-v2/service/iotsitewise (GO):
Affected version(s) >=v0.0.0-20221118221435-b30f43183cc4 <v1.52.19
Fix Suggestion:
Update to version v1.52.19
github.com/aws/aws-sdk-go-v2/service/bedrockagentcore (GO):
Affected version(s) >=v1.0.0 <v1.15.2
Fix Suggestion:
Update to version v1.15.2
github.com/aws/aws-sdk-go-v2/service/bedrockagentruntime (GO):
Affected version(s) >=v0.0.0-20250311184753-6d110cbf3144 <v1.51.8
Fix Suggestion:
Update to version v1.51.8
github.com/aws/aws-sdk-go-v2/service/transcribestreaming (GO):
Affected version(s) >=v0.0.0-20220128225654-56f7cd4685f2 <v1.34.5
Fix Suggestion:
Update to version v1.34.5
github.com/aws/aws-sdk-go-v2/service/lambda (GO):
Affected version(s) >=config/v0.4.0 <v1.88.5
Fix Suggestion:
Update to version v1.88.5
github.com/aws/aws-sdk-go-v2/service/s3 (GO):
Affected version(s) >=config/v0.1.0 <v1.97.3
Fix Suggestion:
Update to version v1.97.3
github.com/aws/aws-sdk-go-v2/service/sagemakerruntime (GO):
Affected version(s) >=f22e9c941683ab78daf6ce81da46bde24a22bc18 <v1.39.6
Fix Suggestion:
Update to version v1.39.6
Related Resources (2)
https://github.com/aws/aws-sdk-go-v2/security/advisories/GHSA-xmrv-pmrh-hhx2
https://github.com/aws/aws-sdk-go-v2/commit/d7776a81bbe2a2e752ba6e851708fd19fe0dea8d
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Input Validation
CWE-20