{"items":[{"id":"NVI-00013024","kind":"vulnerability","title":"probe-image-size: Quadratic-time Denial of Service in the SVG Parser","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-gjj5-9665-rwrc","CVE-2026-104861"],"plain_summary":"GitHub lists this reviewed advisory for probe-image-size. 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-3fe481514a80055dbf5b502e58039c69"],"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":"2026-10-02T23:18:02.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3e424f461f1a7aa263e02b1a3bf0b25e"},{"kind":"CVSS","as_of":"2026-10-02T19:16:41.137Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-3fe481514a80055dbf5b502e58039c69"}],"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-3e424f461f1a7aa263e02b1a3bf0b25e","url":"https://github.com/advisories/GHSA-gjj5-9665-rwrc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-gjj5-9665-rwrc","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"},{"id":"sr-3fe481514a80055dbf5b502e58039c69","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104861","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-104861","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:14.367Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3e424f461f1a7aa263e02b1a3bf0b25e"],"technology":"probe-image-size","known_exclusions":[],"conditions_summary":"## Overview\n\n`probe-image-size` scans the SVG header with a searching regular expression, `/]*>/`. On input that contains many ``, the engine restarts the `[^>]*` scan at every `<` position and runs to end of input each time, giving quadratic time complexity.\n\nBoth the synchronous and the streaming parser are affected.\n\n## Impact\n\nEvery entry point that reaches the SVG parser is affected: `probe.sync()`, `probe(stream)` and `probe(url)`. The URL form is the most exposed one — the input is fetched from a remote host, so an attacker only needs to supply a link.\n\nProcessing a crafted buffer blocks the Node.js event loop at 100% CPU for the whole duration. In production environments such as upload validators, image proxies or link unfurl services, a small number of concurrent requests is enough to deny service.\n\n## Root Cause Analysis\n\nTwo independent problems.\n\n1. **Absence of input size cap in the sync path.** `lib/parse_sync/svg.js` copied the entire buffer into a string and matched against it. There was no size limit at all, so cost scaled with the size of the attacker-supplied buffer.\n\n2. **Repeated rescanning in the stream path.** `lib/pa","public_affected_ranges":["<= 7.3.0"]}],"null_published_at":"2026-11-04T10:04:35.939Z","source_updated_at":"2026-10-02T23:18:02.000Z","source_disclosed_at":"2026-10-02T23:18:02.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T01:39:10.636Z"},{"id":"NVI-00013024","kind":"vulnerability","title":"probe-image-size: Quadratic-time Denial of Service in the SVG Parser","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gjj5-9665-rwrc","CVE-2026-104861"],"plain_summary":"GitHub lists this reviewed advisory for probe-image-size. 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-3e424f461f1a7aa263e02b1a3bf0b25e"],"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":"2026-10-02T23:18:02.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3e424f461f1a7aa263e02b1a3bf0b25e"}],"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-3e424f461f1a7aa263e02b1a3bf0b25e","url":"https://github.com/advisories/GHSA-gjj5-9665-rwrc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-gjj5-9665-rwrc","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3e424f461f1a7aa263e02b1a3bf0b25e"],"technology":"probe-image-size","known_exclusions":[],"conditions_summary":"## Overview\n\n`probe-image-size` scans the SVG header with a searching regular expression, `/]*>/`. On input that contains many ``, the engine restarts the `[^>]*` scan at every `<` position and runs to end of input each time, giving quadratic time complexity.\n\nBoth the synchronous and the streaming parser are affected.\n\n## Impact\n\nEvery entry point that reaches the SVG parser is affected: `probe.sync()`, `probe(stream)` and `probe(url)`. The URL form is the most exposed one — the input is fetched from a remote host, so an attacker only needs to supply a link.\n\nProcessing a crafted buffer blocks the Node.js event loop at 100% CPU for the whole duration. In production environments such as upload validators, image proxies or link unfurl services, a small number of concurrent requests is enough to deny service.\n\n## Root Cause Analysis\n\nTwo independent problems.\n\n1. **Absence of input size cap in the sync path.** `lib/parse_sync/svg.js` copied the entire buffer into a string and matched against it. There was no size limit at all, so cost scaled with the size of the attacker-supplied buffer.\n\n2. **Repeated rescanning in the stream path.** `lib/pa","public_affected_ranges":["<= 7.3.0"]}],"null_published_at":"2026-11-01T07:29:12.909Z","source_updated_at":"2026-10-02T23:18:02.000Z","source_disclosed_at":"2026-10-02T23:18:02.000Z","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":"2026-11-01T01:39:10.636Z"}],"next_cursor":null,"snapshot_revision":"42594"}