{"items":[{"id":"NVI-00003094","kind":"vulnerability","title":"symfony/ux-live-component: Denial of service via unbounded batch action requests","revision":4,"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-mm82-c99c-h2cf","CVE-2026-49209"],"plain_summary":"GitHub lists this reviewed advisory for symfony/ux-live-component, symfony/ux-live-component. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-49209","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3876742c3c344885bbe7938ee72d7696"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":[">= 2.5.0, < 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-3876742c3c344885bbe7938ee72d7696"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":[">= 3.0.0, < 3.1.0"]},{"certainty":"source_listed","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 2.5.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-11-07T07:07:39.849Z","source_updated_at":"2026-06-19T19:34:46.000Z","source_disclosed_at":"2026-06-19T19:34:45.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.981Z"},{"id":"NVI-00003094","kind":"vulnerability","title":"symfony/ux-live-component: Denial of service via unbounded batch action requests","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-mm82-c99c-h2cf","CVE-2026-49209"],"plain_summary":"OSV carries this publisher advisory for symfony/ux-live-component, symfony/ux-live-component. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.36.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 3.1.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-49209","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 2.5.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-11-04T02:53:03.174Z","source_updated_at":"2026-09-10T03:51:09.083Z","source_disclosed_at":"2026-06-19T19:34:45.000Z","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":"2026-10-31T21:42:30.981Z"},{"id":"NVI-00003094","kind":"vulnerability","title":"symfony/ux-live-component: Denial of service via unbounded batch action requests","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-mm82-c99c-h2cf","CVE-2026-49209"],"plain_summary":"OSV carries this publisher advisory for symfony/ux-live-component, symfony/ux-live-component. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.36.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 3.1.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 2.5.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-11-03T17:49:18.516Z","source_updated_at":"2026-09-10T03:51:09.083Z","source_disclosed_at":"2026-06-19T19:34:45.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.981Z"},{"id":"NVI-00003094","kind":"vulnerability","title":"symfony/ux-live-component: Denial of service via unbounded batch action requests","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mm82-c99c-h2cf","CVE-2026-49209"],"plain_summary":"OSV carries this publisher advisory for symfony/ux-live-component, symfony/ux-live-component. 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The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 2.5.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-328e65825feaceccf4ab70f109b8d647"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\n`Symfony\\UX\\LiveComponent\\Controller\\BatchActionController::__invoke()` iterates over the client-supplied `actions` array and issues a full `HttpKernel` sub-request for each entry (event subscribers, validators, Doctrine, rendering). The array size is never bounded, so an authenticated client can submit a single `_batch` request containing thousands of actions and exhaust CPU, memory, and database connections on the application server.\n\n### Resolution\n\n`BatchActionController` now enforces an upper bound of 50 actions per `_batch` request (`MAX_ACTIONS_PER_BATCH`) and rejects larger payloads up front with a `BadRequestHttpException`. The matching JavaScript backend was also updated to split larger client-side batches into multiple requests so legitimate usage isn't affected.\n\nThe patch for this issue is available here for branch 2.x (and forward-ported to 3.x).\n\n### Credits\n\nSymfony would like to thank Pascal Cescon for reporting the issue and Hugo Alliaume for providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-10-31T22:12:38.474Z","source_updated_at":"2026-09-10T03:51:09.083Z","source_disclosed_at":"2026-06-19T19:34:45.000Z","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":"2026-10-31T21:42:30.981Z"}],"next_cursor":null,"snapshot_revision":"42594"}