{"items":[{"id":"NVI-00011706","kind":"vulnerability","title":"Mechanize sends credential headers to another origin after a meta refresh","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-c6rp-p8xm-4q9f","CVE-2026-107399"],"plain_summary":"GitHub lists this reviewed advisory for mechanize. 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-03b66cfe1c780ff1ebeacae3087b2858"],"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":"2026-10-08T22:09:04.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-089bbd5c3e376d1752798e70654448cb"},{"kind":"CVSS","as_of":"2026-10-14T02:16:57.060Z","value":"6.8 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-2954cac11e3d44bc3ce25851faffada4"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.362%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.30102. Missing scores are unknown.","source_id":"sr-03b66cfe1c780ff1ebeacae3087b2858"}],"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-089bbd5c3e376d1752798e70654448cb","url":"https://github.com/advisories/GHSA-c6rp-p8xm-4q9f","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c6rp-p8xm-4q9f","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-2954cac11e3d44bc3ce25851faffada4","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107399","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-107399","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:29.490Z"},{"id":"sr-03b66cfe1c780ff1ebeacae3087b2858","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-2026-107399","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.264Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-089bbd5c3e376d1752798e70654448cb"],"technology":"mechanize","known_exclusions":[],"conditions_summary":"## Summary\n\n`mechanize` applied no trust boundary to a `meta` refresh, so credentials set through `Mechanize#request_headers=` followed a refresh that pointed at another origin.\n\n## Details\n\n`Mechanize::HTTP::Agent#response_follow_meta_refresh` fetched the refresh target with no notion of a crossed origin, so `@request_headers` were re-applied in full. An attacker who could place a `meta` refresh in a page the agent fetched — through stored content, an open redirect, or control of any page in the crawl — collected the same credentials as through an HTTP redirect, on a code path that had none of the redirect path's protections.\n\nThe refresh fetch passes an empty per-request headers hash, so only headers set through `Mechanize#request_headers=` were exposed.\n\nThis requires `Mechanize#follow_meta_refresh = true`. It is `false` by default, so an agent in its default configuration is not affected. Crawlers commonly enable it.\n\n## Impact\n\nAn attacker who can place a `meta` refresh in any page the agent fetches captures bearer tokens and session cookies set through `request_headers=`. Disclosure only; no integrity or availability impact.\n\n## Patches\n\nFixed in `mechanize` v2.14.1. A `meta`","public_affected_ranges":["< 2.14.1"]}],"null_published_at":"2026-11-03T10:03:31.386Z","source_updated_at":"2026-10-08T22:09:04.000Z","source_disclosed_at":"2026-10-08T22:09:03.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00011706","kind":"vulnerability","title":"Mechanize sends credential headers to another origin after a meta refresh","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c6rp-p8xm-4q9f","CVE-2026-107399"],"plain_summary":"GitHub lists this reviewed advisory for mechanize. 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-03b66cfe1c780ff1ebeacae3087b2858"],"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":"2026-10-08T22:09:04.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-089bbd5c3e376d1752798e70654448cb"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.362%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.30102. Missing scores are unknown.","source_id":"sr-03b66cfe1c780ff1ebeacae3087b2858"}],"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-089bbd5c3e376d1752798e70654448cb","url":"https://github.com/advisories/GHSA-c6rp-p8xm-4q9f","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c6rp-p8xm-4q9f","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-03b66cfe1c780ff1ebeacae3087b2858","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-2026-107399","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.264Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-089bbd5c3e376d1752798e70654448cb"],"technology":"mechanize","known_exclusions":[],"conditions_summary":"## Summary\n\n`mechanize` applied no trust boundary to a `meta` refresh, so credentials set through `Mechanize#request_headers=` followed a refresh that pointed at another origin.\n\n## Details\n\n`Mechanize::HTTP::Agent#response_follow_meta_refresh` fetched the refresh target with no notion of a crossed origin, so `@request_headers` were re-applied in full. An attacker who could place a `meta` refresh in a page the agent fetched — through stored content, an open redirect, or control of any page in the crawl — collected the same credentials as through an HTTP redirect, on a code path that had none of the redirect path's protections.\n\nThe refresh fetch passes an empty per-request headers hash, so only headers set through `Mechanize#request_headers=` were exposed.\n\nThis requires `Mechanize#follow_meta_refresh = true`. It is `false` by default, so an agent in its default configuration is not affected. Crawlers commonly enable it.\n\n## Impact\n\nAn attacker who can place a `meta` refresh in any page the agent fetches captures bearer tokens and session cookies set through `request_headers=`. Disclosure only; no integrity or availability impact.\n\n## Patches\n\nFixed in `mechanize` v2.14.1. A `meta`","public_affected_ranges":["< 2.14.1"]}],"null_published_at":"2026-11-02T20:21:07.775Z","source_updated_at":"2026-10-08T22:09:04.000Z","source_disclosed_at":"2026-10-08T22:09:03.000Z","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":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00011706","kind":"vulnerability","title":"Mechanize sends credential headers to another origin after a meta refresh","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c6rp-p8xm-4q9f","CVE-2026-107399"],"plain_summary":"GitHub lists this reviewed advisory for mechanize. 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-089bbd5c3e376d1752798e70654448cb"],"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":"2026-10-08T22:09:04.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-089bbd5c3e376d1752798e70654448cb"}],"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-089bbd5c3e376d1752798e70654448cb","url":"https://github.com/advisories/GHSA-c6rp-p8xm-4q9f","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c6rp-p8xm-4q9f","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-089bbd5c3e376d1752798e70654448cb"],"technology":"mechanize","known_exclusions":[],"conditions_summary":"## Summary\n\n`mechanize` applied no trust boundary to a `meta` refresh, so credentials set through `Mechanize#request_headers=` followed a refresh that pointed at another origin.\n\n## Details\n\n`Mechanize::HTTP::Agent#response_follow_meta_refresh` fetched the refresh target with no notion of a crossed origin, so `@request_headers` were re-applied in full. An attacker who could place a `meta` refresh in a page the agent fetched — through stored content, an open redirect, or control of any page in the crawl — collected the same credentials as through an HTTP redirect, on a code path that had none of the redirect path's protections.\n\nThe refresh fetch passes an empty per-request headers hash, so only headers set through `Mechanize#request_headers=` were exposed.\n\nThis requires `Mechanize#follow_meta_refresh = true`. It is `false` by default, so an agent in its default configuration is not affected. Crawlers commonly enable it.\n\n## Impact\n\nAn attacker who can place a `meta` refresh in any page the agent fetches captures bearer tokens and session cookies set through `request_headers=`. Disclosure only; no integrity or availability impact.\n\n## Patches\n\nFixed in `mechanize` v2.14.1. A `meta`","public_affected_ranges":["< 2.14.1"]}],"null_published_at":"2026-11-01T01:03:56.587Z","source_updated_at":"2026-10-08T22:09:04.000Z","source_disclosed_at":"2026-10-08T22:09:03.000Z","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":"2026-11-01T00:58:23.763Z"}],"next_cursor":null,"snapshot_revision":"42594"}