{"items":[{"id":"NVI-00013148","kind":"vulnerability","title":"lightrag-hku: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested content","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-xpjq-3w4w-w5wr","CVE-2026-86062"],"plain_summary":"GitHub lists this reviewed advisory for lightrag-hku. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-10db548602728d89aff0cba49ec1b6f5"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-22T20:40:28.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7509654d37fe00cb94595934e61a37bc"},{"kind":"CVSS","as_of":"2026-09-22T19:16:54.870Z","value":"6.1 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-17e89ecf76ce5095ad2ef8e6c5869c86"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.338%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.27272. Missing scores are unknown.","source_id":"sr-10db548602728d89aff0cba49ec1b6f5"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7509654d37fe00cb94595934e61a37bc","url":"https://github.com/advisories/GHSA-xpjq-3w4w-w5wr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xpjq-3w4w-w5wr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-17e89ecf76ce5095ad2ef8e6c5869c86","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86062","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-86062","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:21.684Z"},{"id":"sr-10db548602728d89aff0cba49ec1b6f5","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-86062","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.084Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7509654d37fe00cb94595934e61a37bc"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"### Summary\nThe LightRAG WebUI renders assistant/answer chat content as **raw HTML** — `react-markdown` is\nconfigured with `rehypePlugins={[rehypeRaw]}` and `skipHtml={false}` and **no** HTML sanitizer\n(`rehype-sanitize`), element allow-list, or custom `urlTransform`. Because answer content is derived\nfrom user-ingested documents, an attacker who can add a single document can store an HTML/JavaScript\npayload that executes in the browser of any user who later retrieves it (typically an administrator),\nleading to auth-token theft from `localStorage` and full API takeover. No authentication is required in\nthe default configuration.\n\n### Details\nSink — `lightrag_webui/src/components/retrieval/ChatMessage.tsx`:\n- Main answer (`MessageMarkdown`, lines ~348-351) and thinking content (lines ~252-272) render with\n  `rehypePlugins={[rehypeRaw, …]}` and `skipHtml={false}`. The `components` map (lines ~111-156) only\n  restyles safe formatting tags (`p`, `h1`–`h4`, `ul`, `ol`, `li`, `code`); there is no\n  `rehype-sanitize`, no `allowedElements`/`disallowedElements`, and no custom `urlTransform`.\n- Second sink: mermaid is initialized with `securityLevel: 'loose'` (line ~433) and the rendered SVG","public_affected_ranges":["<= 1.5.4"]}],"null_published_at":"2026-11-06T00:29:57.292Z","source_updated_at":"2026-09-22T20:40:28.000Z","source_disclosed_at":"2026-09-22T20:40:27.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013148","kind":"vulnerability","title":"lightrag-hku: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested content","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-xpjq-3w4w-w5wr","CVE-2026-86062"],"plain_summary":"GitHub lists this reviewed advisory for lightrag-hku. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-11546774b3c9e27d782047a703d9ab76"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-22T20:40:28.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7509654d37fe00cb94595934e61a37bc"},{"kind":"CVSS","as_of":"2026-09-22T19:16:54.870Z","value":"6.1 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-17e89ecf76ce5095ad2ef8e6c5869c86"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.338%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.27241. Missing scores are unknown.","source_id":"sr-11546774b3c9e27d782047a703d9ab76"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7509654d37fe00cb94595934e61a37bc","url":"https://github.com/advisories/GHSA-xpjq-3w4w-w5wr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xpjq-3w4w-w5wr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-17e89ecf76ce5095ad2ef8e6c5869c86","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86062","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-86062","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:21.684Z"},{"id":"sr-11546774b3c9e27d782047a703d9ab76","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-86062","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.288Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7509654d37fe00cb94595934e61a37bc"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"### Summary\nThe LightRAG WebUI renders assistant/answer chat content as **raw HTML** — `react-markdown` is\nconfigured with `rehypePlugins={[rehypeRaw]}` and `skipHtml={false}` and **no** HTML sanitizer\n(`rehype-sanitize`), element allow-list, or custom `urlTransform`. Because answer content is derived\nfrom user-ingested documents, an attacker who can add a single document can store an HTML/JavaScript\npayload that executes in the browser of any user who later retrieves it (typically an administrator),\nleading to auth-token theft from `localStorage` and full API takeover. No authentication is required in\nthe default configuration.\n\n### Details\nSink — `lightrag_webui/src/components/retrieval/ChatMessage.tsx`:\n- Main answer (`MessageMarkdown`, lines ~348-351) and thinking content (lines ~252-272) render with\n  `rehypePlugins={[rehypeRaw, …]}` and `skipHtml={false}`. The `components` map (lines ~111-156) only\n  restyles safe formatting tags (`p`, `h1`–`h4`, `ul`, `ol`, `li`, `code`); there is no\n  `rehype-sanitize`, no `allowedElements`/`disallowedElements`, and no custom `urlTransform`.\n- Second sink: mermaid is initialized with `securityLevel: 'loose'` (line ~433) and the rendered SVG","public_affected_ranges":["<= 1.5.4"]}],"null_published_at":"2026-11-04T10:04:35.914Z","source_updated_at":"2026-09-22T20:40:28.000Z","source_disclosed_at":"2026-09-22T20:40:27.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013148","kind":"vulnerability","title":"lightrag-hku: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested content","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xpjq-3w4w-w5wr","CVE-2026-86062"],"plain_summary":"GitHub lists this reviewed advisory for lightrag-hku. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-11546774b3c9e27d782047a703d9ab76"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-22T20:40:28.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7509654d37fe00cb94595934e61a37bc"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.338%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.27241. Missing scores are unknown.","source_id":"sr-11546774b3c9e27d782047a703d9ab76"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7509654d37fe00cb94595934e61a37bc","url":"https://github.com/advisories/GHSA-xpjq-3w4w-w5wr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xpjq-3w4w-w5wr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-11546774b3c9e27d782047a703d9ab76","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-86062","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.288Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7509654d37fe00cb94595934e61a37bc"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"### Summary\nThe LightRAG WebUI renders assistant/answer chat content as **raw HTML** — `react-markdown` is\nconfigured with `rehypePlugins={[rehypeRaw]}` and `skipHtml={false}` and **no** HTML sanitizer\n(`rehype-sanitize`), element allow-list, or custom `urlTransform`. Because answer content is derived\nfrom user-ingested documents, an attacker who can add a single document can store an HTML/JavaScript\npayload that executes in the browser of any user who later retrieves it (typically an administrator),\nleading to auth-token theft from `localStorage` and full API takeover. No authentication is required in\nthe default configuration.\n\n### Details\nSink — `lightrag_webui/src/components/retrieval/ChatMessage.tsx`:\n- Main answer (`MessageMarkdown`, lines ~348-351) and thinking content (lines ~252-272) render with\n  `rehypePlugins={[rehypeRaw, …]}` and `skipHtml={false}`. The `components` map (lines ~111-156) only\n  restyles safe formatting tags (`p`, `h1`–`h4`, `ul`, `ol`, `li`, `code`); there is no\n  `rehype-sanitize`, no `allowedElements`/`disallowedElements`, and no custom `urlTransform`.\n- Second sink: mermaid is initialized with `securityLevel: 'loose'` (line ~433) and the rendered SVG","public_affected_ranges":["<= 1.5.4"]}],"null_published_at":"2026-11-03T17:49:18.472Z","source_updated_at":"2026-09-22T20:40:28.000Z","source_disclosed_at":"2026-09-22T20:40:27.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013148","kind":"vulnerability","title":"lightrag-hku: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested content","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xpjq-3w4w-w5wr","CVE-2026-86062"],"plain_summary":"GitHub lists this reviewed advisory for lightrag-hku. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-7509654d37fe00cb94595934e61a37bc"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-22T20:40:28.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7509654d37fe00cb94595934e61a37bc"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7509654d37fe00cb94595934e61a37bc","url":"https://github.com/advisories/GHSA-xpjq-3w4w-w5wr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xpjq-3w4w-w5wr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7509654d37fe00cb94595934e61a37bc"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"### Summary\nThe LightRAG WebUI renders assistant/answer chat content as **raw HTML** — `react-markdown` is\nconfigured with `rehypePlugins={[rehypeRaw]}` and `skipHtml={false}` and **no** HTML sanitizer\n(`rehype-sanitize`), element allow-list, or custom `urlTransform`. Because answer content is derived\nfrom user-ingested documents, an attacker who can add a single document can store an HTML/JavaScript\npayload that executes in the browser of any user who later retrieves it (typically an administrator),\nleading to auth-token theft from `localStorage` and full API takeover. No authentication is required in\nthe default configuration.\n\n### Details\nSink — `lightrag_webui/src/components/retrieval/ChatMessage.tsx`:\n- Main answer (`MessageMarkdown`, lines ~348-351) and thinking content (lines ~252-272) render with\n  `rehypePlugins={[rehypeRaw, …]}` and `skipHtml={false}`. The `components` map (lines ~111-156) only\n  restyles safe formatting tags (`p`, `h1`–`h4`, `ul`, `ol`, `li`, `code`); there is no\n  `rehype-sanitize`, no `allowedElements`/`disallowedElements`, and no custom `urlTransform`.\n- Second sink: mermaid is initialized with `securityLevel: 'loose'` (line ~433) and the rendered SVG","public_affected_ranges":["<= 1.5.4"]}],"null_published_at":"2026-11-01T07:29:12.926Z","source_updated_at":"2026-09-22T20:40:28.000Z","source_disclosed_at":"2026-09-22T20:40:27.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T07:25:10.521Z"}],"next_cursor":null,"snapshot_revision":"42594"}