Vulnerability-Lookup

OPENSUSE-SU-2026:20477-1

Vulnerability from csaf_opensuse - Published: 2026-04-08 13:03 - Updated: 2026-09-17 17:29

Summary

Security update for aws-c-event-stream

Severity

Important

Notes

Title of the patch: Security update for aws-c-event-stream

Description of the patch: This update for aws-c-event-stream fixes the following issues: Changes in aws-c-event-stream: - CVE-2026-5190: Fixed a out-of-bounds write caused by crafted event-stream messages (bsc#1261298)

Patchnames: openSUSE-Leap-16.0-packagehub-191

CVE-2026-5190

Affected products

Recommended 6 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 16.0:aws-c-event-stream-devel-0:0.4.2-bp160.2.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:aws-c-event-stream-devel-0:0.4.2-bp160.2.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:aws-c-event-stream-devel-0:0.4.2-bp160.2.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libaws-c-event-stream1-0:0.4.2-bp160.2.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libaws-c-event-stream1-0:0.4.2-bp160.2.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libaws-c-event-stream1-0:0.4.2-bp160.2.1.x86_64	—	Vendor Fix

Threats

Impact important

References

6 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://bugzilla.suse.com/1261298	self
https://www.suse.com/security/cve/CVE-2026-5190/	self
https://www.suse.com/security/cve/CVE-2026-5190	external
https://bugzilla.suse.com/1261298	external

JSON

To clipboard

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CVE-2026-5190 (GCVE-0-2026-5190)

Vulnerability from cvelistv5 – Published: 2026-03-31 17:05 – Updated: 2026-04-01 03:55

Title

AWS C Event Stream Streaming Decoder Stack Buffer Overflow

Summary

Out-of-bounds write in the streaming decoder component in aws-c-event-stream before 0.6.0 might allow a third party operating a server to cause memory corruption leading to arbitrary code execution on a client application that processes crafted event-stream messages. To remediate this issue, users should upgrade to version 0.6.0 or later.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-31 00:00 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

AMZN mitre root

References

3 references

URL	Tags
https://aws.amazon.com/security/security-bulletin…	vendor-advisory
https://github.com/awslabs/aws-c-event-stream/sec…	third-party-advisory
https://github.com/awslabs/aws-c-event-stream/rel…	patch

Impacted products

1 product

Vendor	Product	Version
AWS	aws-c-event-stream	Unaffected: 0.6.0

Show details on NVD website

JSON

To clipboard

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    "datePublished": "2026-03-31T17:05:59.601Z",
    "dateReserved": "2026-03-30T20:05:41.435Z",
    "dateUpdated": "2026-04-01T03:55:47.631Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2026:20477-1

CVE-2026-5190 (GCVE-0-2026-5190)

Tags

Sightings

Nomenclature

Related by attack behaviour