{"items":[{"id":"NVI-00004554","kind":"vulnerability","title":"Denial of service caused by infinite recursion when parsing SVG images","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3qx2-6f78-w2j2","CVE-2023-50262"],"plain_summary":"OSV carries this publisher advisory for dompdf/dompdf. 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 2.0.4 for dompdf/dompdf. Confirm the publisher’s latest guidance.","source_ids":["sr-6a9f2a889a5d7419a6c4fcca8dfac0fc"],"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":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-938e656991bdd875b3c3be632915b083"],"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":"2026-10-31T12:00:27.000Z","value":"1.463%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.73626. Missing scores are unknown.","source_id":"sr-938e656991bdd875b3c3be632915b083"}],"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-6a9f2a889a5d7419a6c4fcca8dfac0fc","url":"https://github.com/advisories/GHSA-3qx2-6f78-w2j2","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-3qx2-6f78-w2j2","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.659Z"},{"id":"sr-938e656991bdd875b3c3be632915b083","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-2023-50262","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6a9f2a889a5d7419a6c4fcca8dfac0fc"],"technology":"dompdf/dompdf","known_exclusions":[],"conditions_summary":"### Summary\nWhen parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the SVG document does not reference itself. However, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself.\n\n### Details\nphp-svg-lib, when run in isolation, does not support SVG references for `image` elements. An SVG document can, however, be referenced and Dompdf will run that reference through the same validation. Dompdf currently includes validation to prevent self-referential `image` references, but a chained reference is not checked. A malicious actor may thus trigger infinite recursion in the validation process by chaining references between two or more SVG images.\n\n### PoC\n\nThis following sources can be used to bypass validation provided by Dompdf:\n\nrecurse.html\n```\n\n```\n\none.svg\n```\n\n  <ima","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.4"]}],"null_published_at":"2026-11-04T02:53:03.129Z","source_updated_at":"2026-09-10T03:49:59.235Z","source_disclosed_at":"2023-12-13T23:09:04.000Z","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":"2026-10-31T21:41:49.659Z"},{"id":"NVI-00004554","kind":"vulnerability","title":"Denial of service caused by infinite recursion when parsing SVG images","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3qx2-6f78-w2j2","CVE-2023-50262"],"plain_summary":"OSV carries this publisher advisory for dompdf/dompdf. 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 2.0.4 for dompdf/dompdf. Confirm the publisher’s latest guidance.","source_ids":["sr-6a9f2a889a5d7419a6c4fcca8dfac0fc"],"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}],"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-6a9f2a889a5d7419a6c4fcca8dfac0fc","url":"https://github.com/advisories/GHSA-3qx2-6f78-w2j2","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-3qx2-6f78-w2j2","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.659Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6a9f2a889a5d7419a6c4fcca8dfac0fc"],"technology":"dompdf/dompdf","known_exclusions":[],"conditions_summary":"### Summary\nWhen parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the SVG document does not reference itself. However, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself.\n\n### Details\nphp-svg-lib, when run in isolation, does not support SVG references for `image` elements. An SVG document can, however, be referenced and Dompdf will run that reference through the same validation. Dompdf currently includes validation to prevent self-referential `image` references, but a chained reference is not checked. A malicious actor may thus trigger infinite recursion in the validation process by chaining references between two or more SVG images.\n\n### PoC\n\nThis following sources can be used to bypass validation provided by Dompdf:\n\nrecurse.html\n```\n\n```\n\none.svg\n```\n\n  <ima","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.4"]}],"null_published_at":"2026-10-31T22:12:57.131Z","source_updated_at":"2026-09-10T03:49:59.235Z","source_disclosed_at":"2023-12-13T23:09:04.000Z","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":"2026-10-31T21:41:49.659Z"}],"next_cursor":null,"snapshot_revision":"42594"}