{"items":[{"id":"NVI-00013150","kind":"vulnerability","title":"vouch-proxy has an Unbounded Multipart Cookie Allocation DoS","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-qqff-5854-px68","CVE-2026-55149"],"plain_summary":"GitHub lists this reviewed advisory for github.com/vouch/vouch-proxy. 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-3abeebfdaea002324b10d0d083888cad"],"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":"2026-10-01T08:56:50.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7612f1a1d1b175088f473d81ac5d118c"},{"kind":"CVSS","as_of":"2026-09-30T17:51:56.193Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-3abeebfdaea002324b10d0d083888cad"}],"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-7612f1a1d1b175088f473d81ac5d118c","url":"https://github.com/advisories/GHSA-qqff-5854-px68","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qqff-5854-px68","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"},{"id":"sr-3abeebfdaea002324b10d0d083888cad","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55149","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55149","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:50.402Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7612f1a1d1b175088f473d81ac5d118c"],"technology":"github.com/vouch/vouch-proxy","known_exclusions":[],"conditions_summary":"## Unbounded Multipart Cookie Allocation DoS in vouch-proxy\n\n### Summary\n\nvouch-proxy v0.47.2 contains an unauthenticated remote denial-of-service vulnerability in its multipart cookie reassembly logic. The `/validate` endpoint parses the total cookie part count directly from the attacker-controlled cookie name (e.g., `VouchCookie_1of`) and passes it without any bounds check to `make([]string, N)`. A single HTTP request with `N=10000000000` causes the Go runtime to attempt a ~160 GB heap allocation, triggering a fatal out-of-memory error that crashes the server process immediately. No authentication or prior session is required.\n\n### Details\n\nThe vulnerability exists in `pkg/cookie/cookie.go`. The `Cookie()` function iterates over all cookies in the request, identifies multipart cookies by the `_NofM` suffix in their name, and initializes the reassembly slice on the first matching cookie:\n\n```go\n// pkg/cookie/cookie.go:123–130\nxOFy := strings.Replace(cookie.Name, cookieUnder, \"\", 1)\nxyArray := strings.Split(xOFy, \"of\")\nif numParts == -1 {\n    if numParts, err = strconv.Atoi(xyArray[1]); err != nil {\n        return \"\", fmt.Errorf(\"multipart cookie fail: %s\", err)\n    }\n    cookie","public_affected_ranges":["<= 0.47.2"]}],"null_published_at":"2026-11-04T10:04:35.933Z","source_updated_at":"2026-10-01T08:56:50.000Z","source_disclosed_at":"2026-08-20T17:26:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:22:52.960Z"},{"id":"NVI-00013150","kind":"vulnerability","title":"vouch-proxy has an Unbounded Multipart Cookie Allocation DoS","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qqff-5854-px68","CVE-2026-55149"],"plain_summary":"GitHub lists this reviewed advisory for github.com/vouch/vouch-proxy. 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-7612f1a1d1b175088f473d81ac5d118c"],"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":"2026-10-01T08:56:50.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7612f1a1d1b175088f473d81ac5d118c"}],"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-7612f1a1d1b175088f473d81ac5d118c","url":"https://github.com/advisories/GHSA-qqff-5854-px68","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qqff-5854-px68","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7612f1a1d1b175088f473d81ac5d118c"],"technology":"github.com/vouch/vouch-proxy","known_exclusions":[],"conditions_summary":"## Unbounded Multipart Cookie Allocation DoS in vouch-proxy\n\n### Summary\n\nvouch-proxy v0.47.2 contains an unauthenticated remote denial-of-service vulnerability in its multipart cookie reassembly logic. The `/validate` endpoint parses the total cookie part count directly from the attacker-controlled cookie name (e.g., `VouchCookie_1of`) and passes it without any bounds check to `make([]string, N)`. A single HTTP request with `N=10000000000` causes the Go runtime to attempt a ~160 GB heap allocation, triggering a fatal out-of-memory error that crashes the server process immediately. No authentication or prior session is required.\n\n### Details\n\nThe vulnerability exists in `pkg/cookie/cookie.go`. The `Cookie()` function iterates over all cookies in the request, identifies multipart cookies by the `_NofM` suffix in their name, and initializes the reassembly slice on the first matching cookie:\n\n```go\n// pkg/cookie/cookie.go:123–130\nxOFy := strings.Replace(cookie.Name, cookieUnder, \"\", 1)\nxyArray := strings.Split(xOFy, \"of\")\nif numParts == -1 {\n    if numParts, err = strconv.Atoi(xyArray[1]); err != nil {\n        return \"\", fmt.Errorf(\"multipart cookie fail: %s\", err)\n    }\n    cookie","public_affected_ranges":["<= 0.47.2"]}],"null_published_at":"2026-11-01T07:29:12.926Z","source_updated_at":"2026-10-01T08:56:50.000Z","source_disclosed_at":"2026-08-20T17:26:39.000Z","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":"2026-11-01T07:22:52.960Z"}],"next_cursor":null,"snapshot_revision":"42594"}