{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/68816?format=json","vulnerability_id":"VCID-q3mc-mda1-c3er","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.\n\nTo remediate this issue, users should upgrade to version 0.6.0 or later.","aliases":[{"alias":"CVE-2026-5190"}],"fixed_packages":[],"affected_packages":[],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-5190","reference_id":"","reference_type":"","scores":[{"value":"0.00025","scoring_system":"epss","scoring_elements":"0.07416","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00025","scoring_system":"epss","scoring_elements":"0.0745","published_at":"2026-06-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-5190"},{"reference_url":"https://aws.amazon.com/security/security-bulletins/2026-011-aws/","reference_id":"2026-011-aws","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"value":"7.7","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-31T17:46:52Z/"}],"url":"https://aws.amazon.com/security/security-bulletins/2026-011-aws/"},{"reference_url":"https://github.com/awslabs/aws-c-event-stream/security/advisories/GHSA-xvjw-fjq5-68hf","reference_id":"GHSA-xvjw-fjq5-68hf","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"value":"7.7","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-31T17:46:52Z/"}],"url":"https://github.com/awslabs/aws-c-event-stream/security/advisories/GHSA-xvjw-fjq5-68hf"},{"reference_url":"https://github.com/awslabs/aws-c-event-stream/releases/tag/v0.6.0","reference_id":"v0.6.0","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"value":"7.7","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-31T17:46:52Z/"}],"url":"https://github.com/awslabs/aws-c-event-stream/releases/tag/v0.6.0"}],"weaknesses":[{"cwe_id":787,"name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer."}],"exploits":[],"severity_range_score":"7.5 - 7.7","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-q3mc-mda1-c3er"}