CVE-2026-5190: AWS C Event Stream Streaming Decoder Stack Buffer Overflow
AWS · aws-c-event-stream
Fixed in 0.6.0 · Affected: aws-c-event-stream before 0.6.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 37% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- AWS · aws-c-event-streambefore 0.6.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- AWS
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-5190 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.