{"items":[{"id":"NVI-00016428","kind":"vulnerability","title":"@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r557-wffq-wvrc","CVE-2026-59730"],"plain_summary":"GitHub lists this reviewed advisory for @astrojs/node. 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-188a54df2ba15628314d3da47f86b47b"],"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":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.460%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40033. Missing scores are unknown.","source_id":"sr-188a54df2ba15628314d3da47f86b47b"}],"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-7021c953fc86292c15a9305c1edf7ba0","url":"https://github.com/advisories/GHSA-r557-wffq-wvrc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-r557-wffq-wvrc","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:16:47.162Z"},{"id":"sr-188a54df2ba15628314d3da47f86b47b","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-2026-59730","publisher":"FIRST EPSS","observed_at":"2026-11-04T23:33:33.054Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7021c953fc86292c15a9305c1edf7ba0"],"technology":"@astrojs/node","known_exclusions":[],"conditions_summary":"### Impact\n\nWith `trailingSlash: 'always'` configured, the `@astrojs/node` standalone server's static file handler appends a trailing slash to request paths and issues a `301` redirect. Paths beginning with `/\\` (slash-backslash) were not recognized as internal paths, so the handler would echo the raw path back in the `Location` header. Because browsers treat `\\` as `/` per the WHATWG URL specification, the resulting redirect could resolve to an external host.\n\n**Preconditions:**\n- `trailingSlash: 'always'` must be set (non-default; the default is `'ignore'`)\n- The request path must not have a file extension in its final segment\n- An attacker must deliver the crafted link to a user\n\n### Patches\n\nFixed by treating backslash-prefixed paths the same as `//`-prefixed paths in `isInternalPath()`, so they are no longer rewritten with a trailing slash.\n\n### Workarounds\n\nUse the default `trailingSlash: 'ignore'` setting, which does not issue trailing-slash redirects in the static file handler.\n\n### References\n\n- WHATWG URL spec: backslash normalization","public_affected_ranges":[">= 8.1.0, < 11.0.2"]}],"null_published_at":"2026-11-08T19:53:38.943Z","source_updated_at":"2026-08-12T20:37:35.000Z","source_disclosed_at":"2026-07-20T23:22:22.000Z","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":"2026-11-02T20:16:47.162Z"},{"id":"NVI-00016428","kind":"vulnerability","title":"@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r557-wffq-wvrc","CVE-2026-59730"],"plain_summary":"GitHub lists this reviewed advisory for @astrojs/node. 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-7021c953fc86292c15a9305c1edf7ba0"],"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-7021c953fc86292c15a9305c1edf7ba0","url":"https://github.com/advisories/GHSA-r557-wffq-wvrc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-r557-wffq-wvrc","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:16:47.162Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7021c953fc86292c15a9305c1edf7ba0"],"technology":"@astrojs/node","known_exclusions":[],"conditions_summary":"### Impact\n\nWith `trailingSlash: 'always'` configured, the `@astrojs/node` standalone server's static file handler appends a trailing slash to request paths and issues a `301` redirect. Paths beginning with `/\\` (slash-backslash) were not recognized as internal paths, so the handler would echo the raw path back in the `Location` header. Because browsers treat `\\` as `/` per the WHATWG URL specification, the resulting redirect could resolve to an external host.\n\n**Preconditions:**\n- `trailingSlash: 'always'` must be set (non-default; the default is `'ignore'`)\n- The request path must not have a file extension in its final segment\n- An attacker must deliver the crafted link to a user\n\n### Patches\n\nFixed by treating backslash-prefixed paths the same as `//`-prefixed paths in `isInternalPath()`, so they are no longer rewritten with a trailing slash.\n\n### Workarounds\n\nUse the default `trailingSlash: 'ignore'` setting, which does not issue trailing-slash redirects in the static file handler.\n\n### References\n\n- WHATWG URL spec: backslash normalization","public_affected_ranges":[">= 8.1.0, < 11.0.2"]}],"null_published_at":"2026-11-04T10:04:27.943Z","source_updated_at":"2026-08-12T20:37:35.000Z","source_disclosed_at":"2026-07-20T23:22:22.000Z","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":"2026-11-02T20:16:47.162Z"}],"next_cursor":null,"snapshot_revision":"42594"}