ETK-2026-4264Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
parse-server deployments using LiveQuery can consume excessive event-loop time when evaluating subscriptions with large list-based constraints. A client permitted to subscribe to, and save objects in, an affected LiveQuery class can delay service for other requests. Only classes with LiveQuery enabled are affected.
mitigation
Upgrade the npm parse-server package to 9.12.0-alpha.2 or a later fixed release. Until upgraded, reject oversized list-based LiveQuery filters with a beforeSubscribe trigger and limit who can subscribe to or write affected classes.
fixed in 9.12.0-alpha.2
outcome
Contextual, not validated: no deterministic check could cover this one, and no technique passed our review.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-11 02:46Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-4264
{ "etk_id": "ETK-2026-4264", "cve_id": null, "display_id": "ETK-2026-4264", "ghsa_id": "GHSA-f6wh-8wcf-xfv8", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "Algorithmic denial of service in parse-server LiveQuery", "summary": "parse-server deployments using LiveQuery can consume excessive event-loop time when evaluating subscriptions with large list-based constraints. A client permitted to subscribe to, and save objects in, an affected LiveQuery class can delay service for other requests. Only classes with LiveQuery enabled are affected.", "mitigation": "Upgrade the npm parse-server package to 9.12.0-alpha.2 or a later fixed release. Until upgraded, reject oversized list-based LiveQuery filters with a beforeSubscribe trigger and limit who can subscribe to or write affected classes.", "vendor": "npm", "product": "parse-server", "affected": [ { "affected_notes": [], "affected_ranges": [ "< 9.12.0-alpha.2" ], "ecosystem": "npm", "fixed_versions": [ "9.12.0-alpha.2" ], "package_name": "parse-server", "purl": "pkg:npm/parse-server" } ], "cwes": [ 407 ], "cvss_score": 8.2, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 12.84699935, "t0_at": null, "signals": { "trigger_signal": { "at": "2026-11-11T02:46:15+00:00", "days": -1.459235654675926, "is_lower_bound": true, "measured_at": "2026-11-12T13:47:33.005616+00:00", "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-f6wh-8wcf-xfv8" } } }
published 2026-11-12 10:33Z
last change 2026-11-12 13:38Z
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