CVE-2026-56812 Phoenix JavaScript presence client crashes on presence keys colliding with Object.prototype members in Presence.syncState/syncDiff
| Reporter | Title | Published | Views | Family All 26 |
|---|---|---|---|---|
 | CVE-2026-56812 | 7 Jul 202615:22 | – | attackerkb |
 | CVE-2026-56812 | 3 Sep 202622:35 | – | circl |
 | CVE-2026-56812 | 7 Jul 202615:22 | – | cve |
 | EUVD-2026-42050 | 3 Sep 202620:30 | – | euvd |
 | Phoenix: Presence keys colliding with `Object.prototype` members break existence checks | 3 Sep 202620:30 | – | github |
 | CVE-2026-56812 | 7 Jul 202616:16 | – | nvd |
 | CVE-2026-56812 Phoenix JavaScript presence client crashes on presence keys colliding with Object.prototype members in Presence.syncState/syncDiff | 7 Jul 202615:22 | – | osv |
| EEF-CVE-2026-56812 Phoenix JavaScript presence client crashes on presence keys colliding with Object.prototype members in Presence.syncState/syncDiff | 7 Jul 202615:22 | – | osv |
| GHSA-63MC-HW7G-86RR Phoenix: Presence keys colliding with `Object.prototype` members break existence checks | 3 Sep 202620:30 | – | osv |
 | NPM: Phoenix: Presence keys colliding with `Object.prototype` members break existence checks | 3 Sep 202620:30 | – | patchstack |
10
[
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:phoenixframework:phoenix:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"Presence"
],
"packageName": "phoenix",
"packageURL": "pkg:hex/phoenix",
"product": "phoenix",
"programFiles": [
"assets/js/phoenix/presence.js"
],
"programRoutines": [
{
"name": "Presence.syncState"
},
{
"name": "Presence.syncDiff"
}
],
"repo": "https://github.com/phoenixframework/phoenix",
"vendor": "phoenixframework",
"versions": [
{
"lessThan": "1.5.15",
"status": "affected",
"version": "1.2.0-rc.0",
"versionType": "semver"
},
{
"lessThan": "1.6.17",
"status": "affected",
"version": "1.6.0-rc.0",
"versionType": "semver"
},
{
"lessThan": "1.7.24",
"status": "affected",
"version": "1.7.0-rc.0",
"versionType": "semver"
},
{
"lessThan": "1.8.9",
"status": "affected",
"version": "1.8.0-rc.0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://registry.npmjs.org",
"cpes": [
"cpe:2.3:a:phoenixframework:phoenix:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"Presence"
],
"packageName": "phoenix",
"packageURL": "pkg:npm/phoenix",
"product": "phoenix",
"programFiles": [
"assets/js/phoenix/presence.js"
],
"programRoutines": [
{
"name": "Presence.syncState"
},
{
"name": "Presence.syncDiff"
}
],
"repo": "https://github.com/phoenixframework/phoenix",
"vendor": "phoenixframework",
"versions": [
{
"lessThan": "1.5.15",
"status": "affected",
"version": "1.2.0-rc.0",
"versionType": "semver"
},
{
"lessThan": "1.6.17",
"status": "affected",
"version": "1.6.0-rc.0",
"versionType": "semver"
},
{
"lessThan": "1.7.24",
"status": "affected",
"version": "1.7.0-rc.0",
"versionType": "semver"
},
{
"lessThan": "1.8.9",
"status": "affected",
"version": "1.8.0-rc.0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:phoenixframework:phoenix:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"Presence"
],
"packageName": "phoenixframework/phoenix",
"packageURL": "pkg:github/phoenixframework/phoenix",
"product": "phoenix",
"programFiles": [
"assets/js/phoenix/presence.js"
],
"programRoutines": [
{
"name": "Presence.syncState"
},
{
"name": "Presence.syncDiff"
}
],
"repo": "https://github.com/phoenixframework/phoenix",
"vendor": "phoenixframework",
"versions": [
{
"changes": [
{
"at": "7f7b971c1ea0994e3fbd1c11ddb05e780bd38ad8",
"status": "unaffected"
},
{
"at": "89a1c4be161e436241e12b2378a719904b9bd96f",
"status": "unaffected"
},
{
"at": "b90b22521465ece00eb5a19d5aa2b9465b209c85",
"status": "unaffected"
},
{
"at": "beffc4da1e787e572121f68902c63daf4fe7d9c2",
"status": "unaffected"
}
],
"lessThan": "*",
"status": "affected",
"version": "2270aaf21bd02c6a6a1022820564efb605a97655",
"versionType": "git"
}
]
}
]Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
07 Jul 2026 16:11Current
CVSS 46.3
EPSS0.00507