{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-9491 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-9491 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-9491 is a medium-severity server-side request forgery vulnerability in Synology Chat Server, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-9491 and fix it if it is affected.\n\nWhat it is: CVE-2026-9491 is a medium-severity server-side request forgery vulnerability in Synology Chat Server, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-9491 in the wild and no public exploit code.\n\nAffected product: Synology Chat Server. 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-2026-9491/ (Markdown: https://insights.sbomify.com/CVE-2026-9491/index.md)","id":"CVE-2026-9491","markdown":"https://insights.sbomify.com/CVE-2026-9491/index.md","name":"CVE-2026-9491","record":{"aliases":["GHSA-w5gw-c597-vxvj"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Synology Chat Server","requires_auth":"low_privilege","summary":"Remote authenticated users can exploit an SSRF vulnerability in Synology Chat Server webhooks to obtain non-sensitive information.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"synology","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"A server-ide request forgery (SSRF) vulnerability in webhook in Synology Chat Server before 2.4.5-22148 allows remote authenticated users to obtain non-sensitive information.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Server-side request forgery in Synology Chat Server","id":"CVE-2026-9491","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"GIGABYTE｜Gigabyte Control Center - Improper Access Control","id":"CVE-2026-9492"},"packages":[],"prev":{"headline":"Acer Care Center creates a Named Pipe with a weak Security Descriptor","id":"CVE-2026-9490"},"products":["Synology Chat Server"],"published":"2026-08-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-08-28","vendors":["Synology"]},"summary":"Remote authenticated users can exploit an SSRF vulnerability in Synology Chat Server webhooks to obtain non-sensitive information.","url":"https://insights.sbomify.com/CVE-2026-9491/"}