{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-5190 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-5190 is a high-severity memory corruption vulnerability in aws-c-event-stream, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-5190 and fix it if it is affected.\n\nWhat it is: CVE-2026-5190 is a high-severity memory corruption vulnerability in aws-c-event-stream, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-5190 in the wild and no public exploit code.\n\nAffected product: aws-c-event-stream. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-5190/ (Markdown: https://insights.sbomify.com/CVE-2026-5190/index.md)","id":"CVE-2026-5190","markdown":"https://insights.sbomify.com/CVE-2026-5190/index.md","name":"CVE-2026-5190","record":{"aliases":["GHSA-xvjw-fjq5-68hf","openSUSE-SU-2026:10512-1","openSUSE-SU-2026:20477-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"AWS C event stream library","requires_auth":"none","summary":"A stack buffer overflow in the AWS C event stream decoder allows remote attackers to execute arbitrary code on client applications processing crafted messages.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMZN","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"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.","ecosystems":["openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"AWS C Event Stream Streaming Decoder Stack Buffer Overflow","id":"CVE-2026-5190","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Cross-site scripting in Tiled Gallery Carousel Without JetPack","id":"CVE-2026-5191"},"packages":[{"ecosystem":"openSUSE:Leap 16.0","fixed":["0.4.2-bp160.2.1"],"introduced":["0"],"last_affected":[],"package":"aws-c-event-stream","purl":"pkg:rpm/opensuse/aws-c-event-stream\u0026distro=openSUSE%20Leap%2016.0","source":"openSUSE-SU-2026:20477-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.7.0-1.1"],"introduced":["0"],"last_affected":[],"package":"aws-c-event-stream","purl":"pkg:rpm/opensuse/aws-c-event-stream\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10512-1"}],"prev":{"headline":"Nexus Repository 3 - Hardcoded Credential in Internal Database Component","id":"CVE-2026-5189"},"products":["aws-c-event-stream"],"published":"2026-03-31","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["AWS"]},"summary":"A stack buffer overflow in the AWS C event stream decoder allows remote attackers to execute arbitrary code on client applications processing crafted messages.","url":"https://insights.sbomify.com/CVE-2026-5190/"}