{"items":[{"id":"NVI-00013242","kind":"vulnerability","title":"ip-address: no classifier recognizes the NAT64 local-use range 64:ff9b:1::/48, allowing SSRF and trust-boundary bypass","revision":2,"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-2vr4-cq9g-pvrc","CVE-2026-101910"],"plain_summary":"GitHub lists this reviewed advisory for ip-address. 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-26721ed17e5855a037c6a76ee21af493"],"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":"2026-09-30T19:57:08.043Z","value":"6.9 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-26721ed17e5855a037c6a76ee21af493"}],"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-a18f91c2acba556645019d60ba4175e7","url":"https://github.com/advisories/GHSA-2vr4-cq9g-pvrc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2vr4-cq9g-pvrc","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:25.558Z"},{"id":"sr-26721ed17e5855a037c6a76ee21af493","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101910","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-101910","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:04.487Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a18f91c2acba556645019d60ba4175e7"],"technology":"ip-address","known_exclusions":[],"conditions_summary":"### Summary\n\nNo classifier on `Address6` recognizes the NAT64 local-use range `64:ff9b:1::/48` (RFC 8215). `isPrivate()`, `isLoopback()`, `isLinkLocal()` and their siblings all return `false` for every address in it, so an internal IPv4 destination written through a local-use NAT64 prefix (`64:ff9b:1:7f00:0:100::` for `127.0.0.1`, `64:ff9b:1:a9fe:a9:fe00::` for `169.254.169.254`) reads as an ordinary global address. `getType()` names the range `'NAT64 (local-use)'`, so the library knows what the address is and classifies it as nothing.\n\nAn application that builds a network trust-boundary decision on these checks (for example a filter intended to block Server-Side Request Forgery, or SSRF) will classify an internal target as external and allow the request. SSRF is an attack in which a user-supplied address coaxes the server into making a request to an internal destination the user could not otherwise reach, such as a loopback service or a cloud metadata endpoint.\n\n### Details\n\nThe fix for GHSA-22jq-vg5j-6vgg (10.2.1) classifies IPv4-mapped (`::ffff:0:0/96`) and NAT64 well-known (`64:ff9b::/96`) addresses by their embedded IPv4 address: `embeddedIPv4()` in `src/ipv6.ts` decodes the t","public_affected_ranges":[">= 10.2.0, <= 10.5.0"]}],"null_published_at":"2026-11-03T10:03:31.383Z","source_updated_at":"2026-09-28T20:43:07.000Z","source_disclosed_at":"2026-09-28T20:43:03.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:24:25.558Z"},{"id":"NVI-00013242","kind":"vulnerability","title":"ip-address: no classifier recognizes the NAT64 local-use range 64:ff9b:1::/48, allowing SSRF and trust-boundary bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2vr4-cq9g-pvrc","CVE-2026-101910"],"plain_summary":"GitHub lists this reviewed advisory for ip-address. 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-a18f91c2acba556645019d60ba4175e7"],"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":[],"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-a18f91c2acba556645019d60ba4175e7","url":"https://github.com/advisories/GHSA-2vr4-cq9g-pvrc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2vr4-cq9g-pvrc","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:25.558Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a18f91c2acba556645019d60ba4175e7"],"technology":"ip-address","known_exclusions":[],"conditions_summary":"### Summary\n\nNo classifier on `Address6` recognizes the NAT64 local-use range `64:ff9b:1::/48` (RFC 8215). `isPrivate()`, `isLoopback()`, `isLinkLocal()` and their siblings all return `false` for every address in it, so an internal IPv4 destination written through a local-use NAT64 prefix (`64:ff9b:1:7f00:0:100::` for `127.0.0.1`, `64:ff9b:1:a9fe:a9:fe00::` for `169.254.169.254`) reads as an ordinary global address. `getType()` names the range `'NAT64 (local-use)'`, so the library knows what the address is and classifies it as nothing.\n\nAn application that builds a network trust-boundary decision on these checks (for example a filter intended to block Server-Side Request Forgery, or SSRF) will classify an internal target as external and allow the request. SSRF is an attack in which a user-supplied address coaxes the server into making a request to an internal destination the user could not otherwise reach, such as a loopback service or a cloud metadata endpoint.\n\n### Details\n\nThe fix for GHSA-22jq-vg5j-6vgg (10.2.1) classifies IPv4-mapped (`::ffff:0:0/96`) and NAT64 well-known (`64:ff9b::/96`) addresses by their embedded IPv4 address: `embeddedIPv4()` in `src/ipv6.ts` decodes the t","public_affected_ranges":[">= 10.2.0, <= 10.5.0"]}],"null_published_at":"2026-11-01T07:29:12.931Z","source_updated_at":"2026-09-28T20:43:07.000Z","source_disclosed_at":"2026-09-28T20:43:03.000Z","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":"2026-11-01T07:24:25.558Z"}],"next_cursor":null,"snapshot_revision":"42594"}