{"items":[{"id":"NVI-00012947","kind":"vulnerability","title":"lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard","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-vv3m-f8x4-7377","CVE-2026-85740"],"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-03ebf73ce59e099ab398e65627e2e776"],"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":"2026-09-22T20:40:26.000Z","value":"7.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1886b97a83da348e222401e13d9e1b54"},{"kind":"CVSS","as_of":"2026-09-28T20:17:11.063Z","value":"7.1 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-0837c2797b7a5ab41a855eb61fac152a"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.264%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.18228. Missing scores are unknown.","source_id":"sr-03ebf73ce59e099ab398e65627e2e776"}],"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-1886b97a83da348e222401e13d9e1b54","url":"https://github.com/advisories/GHSA-vv3m-f8x4-7377","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-vv3m-f8x4-7377","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-0837c2797b7a5ab41a855eb61fac152a","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85740","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-85740","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:21.684Z"},{"id":"sr-03ebf73ce59e099ab398e65627e2e776","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-2026-85740","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:17:01.143Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1886b97a83da348e222401e13d9e1b54"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"## Summary\n\nLightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, `_validated_addresses()` in `lightrag/parser/markdown/parser.py`, resolves the image host and rejects it when the resolved IP is not `is_global`. That check is evaluated on the raw resolved address and never decodes IPv6 transition wrappers that embed an internal IPv4. Python's `ipaddress` classifies a NAT64 (`64:ff9b::/96` and the RFC 8215 `64:ff9b:1::/48` prefix), IPv4-compatible (`::a.b.c.d`), or 6to4 (`2002::/16`) literal that wraps an internal IPv4 as globally routable, so the guard passes it. On a host with NAT64/DNS64 routing the request is then delivered to the embedded internal target (loopback, RFC1918, or a cloud metadata endpoint), and the fetched body is ingested. The plain and IPv4-mapped (`::ffff:`) forms of the same internal address are correctly blocked, so this is an encoding that defeats the existing filter.\n\n## Affected component and versions\n\n- Package: `lightrag-hku` (LightRAG), the native markdown image-download path.\n- Component: `lightrag/parser/markdown/parser.py`, guard `_validated_addresses()` (the `if not ","public_affected_ranges":["< 1.5.5"]}],"null_published_at":"2026-11-04T10:04:35.899Z","source_updated_at":"2026-09-22T20:40:26.000Z","source_disclosed_at":"2026-09-22T20:40:25.000Z","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-00012947","kind":"vulnerability","title":"lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-vv3m-f8x4-7377","CVE-2026-85740"],"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-03ebf73ce59e099ab398e65627e2e776"],"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":"2026-09-22T20:40:26.000Z","value":"7.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1886b97a83da348e222401e13d9e1b54"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.264%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.18228. Missing scores are unknown.","source_id":"sr-03ebf73ce59e099ab398e65627e2e776"}],"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-1886b97a83da348e222401e13d9e1b54","url":"https://github.com/advisories/GHSA-vv3m-f8x4-7377","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-vv3m-f8x4-7377","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-03ebf73ce59e099ab398e65627e2e776","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-2026-85740","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:17:01.143Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1886b97a83da348e222401e13d9e1b54"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"## Summary\n\nLightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, `_validated_addresses()` in `lightrag/parser/markdown/parser.py`, resolves the image host and rejects it when the resolved IP is not `is_global`. That check is evaluated on the raw resolved address and never decodes IPv6 transition wrappers that embed an internal IPv4. Python's `ipaddress` classifies a NAT64 (`64:ff9b::/96` and the RFC 8215 `64:ff9b:1::/48` prefix), IPv4-compatible (`::a.b.c.d`), or 6to4 (`2002::/16`) literal that wraps an internal IPv4 as globally routable, so the guard passes it. On a host with NAT64/DNS64 routing the request is then delivered to the embedded internal target (loopback, RFC1918, or a cloud metadata endpoint), and the fetched body is ingested. The plain and IPv4-mapped (`::ffff:`) forms of the same internal address are correctly blocked, so this is an encoding that defeats the existing filter.\n\n## Affected component and versions\n\n- Package: `lightrag-hku` (LightRAG), the native markdown image-download path.\n- Component: `lightrag/parser/markdown/parser.py`, guard `_validated_addresses()` (the `if not ","public_affected_ranges":["< 1.5.5"]}],"null_published_at":"2026-11-03T17:49:14.997Z","source_updated_at":"2026-09-22T20:40:26.000Z","source_disclosed_at":"2026-09-22T20:40:25.000Z","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-00012947","kind":"vulnerability","title":"lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-vv3m-f8x4-7377","CVE-2026-85740"],"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-1886b97a83da348e222401e13d9e1b54"],"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":"2026-09-22T20:40:26.000Z","value":"7.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1886b97a83da348e222401e13d9e1b54"}],"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-1886b97a83da348e222401e13d9e1b54","url":"https://github.com/advisories/GHSA-vv3m-f8x4-7377","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-vv3m-f8x4-7377","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1886b97a83da348e222401e13d9e1b54"],"technology":"lightrag-hku","known_exclusions":[],"conditions_summary":"## Summary\n\nLightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, `_validated_addresses()` in `lightrag/parser/markdown/parser.py`, resolves the image host and rejects it when the resolved IP is not `is_global`. That check is evaluated on the raw resolved address and never decodes IPv6 transition wrappers that embed an internal IPv4. Python's `ipaddress` classifies a NAT64 (`64:ff9b::/96` and the RFC 8215 `64:ff9b:1::/48` prefix), IPv4-compatible (`::a.b.c.d`), or 6to4 (`2002::/16`) literal that wraps an internal IPv4 as globally routable, so the guard passes it. On a host with NAT64/DNS64 routing the request is then delivered to the embedded internal target (loopback, RFC1918, or a cloud metadata endpoint), and the fetched body is ingested. The plain and IPv4-mapped (`::ffff:`) forms of the same internal address are correctly blocked, so this is an encoding that defeats the existing filter.\n\n## Affected component and versions\n\n- Package: `lightrag-hku` (LightRAG), the native markdown image-download path.\n- Component: `lightrag/parser/markdown/parser.py`, guard `_validated_addresses()` (the `if not ","public_affected_ranges":["< 1.5.5"]}],"null_published_at":"2026-11-01T07:29:12.904Z","source_updated_at":"2026-09-22T20:40:26.000Z","source_disclosed_at":"2026-09-22T20:40:25.000Z","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"}