High
angular.js — security advisory
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of raw-text elements (such as , , or ), the index offset calculation in domino's replacement logic shifted. This misalignment caused domino to fail to replace or escape the closing tag, leaving it raw and unescaped in the output HTML. An attacker who controls the dynamic text can supply a payload containing both an astral Unicode character and a closing tag (e.g., 😀). When serialized on the server during SSR, the browser parses the unescaped closing tag, exits the raw-text context early, and executes the subsequent
- Products
- angular.js
- Affected versions
- 1.2.28-1ubuntu2, 1.2.28-1ubuntu2+esm1, 1.5.10-1, 1.5.10-1ubuntu0.1~esm1, 1.7.9-1, 1.7.9-1ubuntu0.1~esm1, 1.8.2-2, 1.8.2-2ubuntu0.1, 1.8.3-1, 1.8.3-1ubuntu0.24.04.1, 1.8.3-3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-50555
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:44 UTC · Revision 1
Source evidence
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of raw-text elements (such as , , or ), the index offset calculation in domino's replacement logic shifted. This misalignment caused domino to fail to replace or escape the closing tag, leaving it raw and unescaped in the output HTML. An attacker who controls the dynamic text can supply a payload containing both an astral Unicode character and a closing tag (e.g., 😀). When serialized on the server during SSR, the browser parses the unescaped closing tag, exits the raw-text context early, and executes the subsequent
osv:UBUNTU-CVE-2026-50555
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
angular.js
Fixed versions: Not specified
Complete source record
{
"id": "fbeef899cd5887e856570641b88ea6a27c0f45efec046e859eeda22b1a6f1d7d",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-50555",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-50555",
"summary": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of raw-text elements (such as , , or ), the index offset calculation in domino's replacement logic shifted. This misalignment caused domino to fail to replace or escape the closing tag, leaving it raw and unescaped in the output HTML. An attacker who controls the dynamic text can supply a payload containing both an astral Unicode character and a closing tag (e.g., 😀). When serialized on the server during SSR, the browser parses the unescaped closing tag, exits the raw-text context early, and executes the subsequent",
"evidence": "osv:UBUNTU-CVE-2026-50555",
"products": [
{
"name": {
"value": "angular.js",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.2.28-1ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "1.2.28-1ubuntu2+esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
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"affected_versions": [
{
"value": "1.5.10-1",
"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
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{
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"affected_versions": [
{
"value": "1.5.10-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.7.9-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.7.9-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
}
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},
{
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},
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"affected_versions": [
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"evidence": "/affected/3/versions"
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{
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"evidence": "/affected/3/versions"
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{
"name": {
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"evidence": "/affected/4/package/name"
},
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"affected_versions": [
{
"value": "1.8.3-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.8.3-1ubuntu0.24.04.1",
"evidence": "/affected/4/versions"
}
]
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{
"name": {
"value": "angular.js",
"evidence": "/affected/5/package/name"
},
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"affected_versions": [
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"value": "1.8.3-1",
"evidence": "/affected/5/versions"
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{
"name": {
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{
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{
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"evidence": "/affected/7/package/name"
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"affected_versions": [
{
"value": "1.8.3-3",
"evidence": "/affected/7/versions"
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]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-50555",
"aliases": [
"UBUNTU-CVE-2026-50555"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
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{
"type": "ECOSYSTEM",
"events": [
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"introduced": "0"
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],
"package": {
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"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"1.2.28-1ubuntu2",
"1.2.28-1ubuntu2+esm1"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
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"binary_version": "1.2.28-1ubuntu2+esm1"
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]
}
},
{
"ranges": [
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"package": {
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"purl": "pkg:deb/ubuntu/angular.js?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"1.5.10-1",
"1.5.10-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50555.json"
},
"ecosystem_specific": {
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},
{
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"package": {
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"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
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"1.7.9-1",
"1.7.9-1ubuntu0.1~esm1"
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"ecosystem": "Ubuntu:22.04:LTS"
},
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"1.8.2-2",
"1.8.2-2ubuntu0.1"
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"ecosystem": "Ubuntu:25.10"
},
"versions": [
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"database_specific": {
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],
"modified": "2026-10-17T12:58:59.842188362Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-50555",
"https://www.cve.org/CVERecord?id=CVE-2026-50555"
]
},
"related_cves": [
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359208,
"published_at": "2026-06-22T18:16:00+00:00"
}