{"id":"CVE-2026-103243","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-103243","generatedAt":"2026-10-28T04:14:37.603Z","title":"LightLLM through 1.2.0 fails to validate image_url and audio_url parameters in multimodal endpoints, allowing unauthenticated attackers to perform server-side request forgery.","description":"LightLLM through 1.2.0 fails to validate image_url and audio_url parameters in multimodal endpoints, allowing unauthenticated attackers to perform server-side request forgery. Attackers can supply arbitrary URLs to fetch internal resources, with vision model processing disclosing content or error responses revealing internal network topology.","published":"2026-09-30T15:22:27.000Z","lastModified":"2026-10-02T17:17:02.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-918"],"affected":[],"epss":{"score":0.0031,"percentile":0.23698,"date":"2026-10-27","history":[{"date":"2026-10-01","score":0.0041,"percentile":0.3282}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-30T15:22:27.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-09-30T15:22:26.607Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/ModelTC/LightLLM","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/LightLLM/issues/1608","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/multimodal_params.py#L149","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/utils/multimodal_utils.py#L82-L91","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/lightllm-through-1.2.0-server-side-request-forgery-via-multimodal-endpoints","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/LightLLM/issues/1608","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-103243","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}