High
Angular Client Hydration DOM Clobbering & Response-Cache Poisoning
Type: advisorySources: OSV
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, to optimize client-side bootstrap in Server-Side Rendered (SSR) environments, Angular supports Hydration via provideClientHydration(). During SSR, Angular serializes the application's runtime state (such as cached HttpClient responses) and outputs it into the HTML stream as a
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-54267
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 12:55 UTC · Revision 1
Source evidence
Angular Client Hydration DOM Clobbering & Response-Cache Poisoning
core-osv · Original sourcePublished 22 Jun 2026, 15:30 UTC
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, to optimize client-side bootstrap in Server-Side Rendered (SSR) environments, Angular supports Hydration via provideClientHydration(). During SSR, Angular serializes the application's runtime state (such as cached HttpClient responses) and outputs it into the HTML stream as a
osv:CVE-2026-54267
Complete source record
{
"id": "aaf6ab00381195f455c883a646381ce3061cb82e2a639826f6acc9b493262863",
"url": "https://osv.dev/vulnerability/CVE-2026-54267",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Angular Client Hydration DOM Clobbering & Response-Cache Poisoning",
"summary": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, to optimize client-side bootstrap in Server-Side Rendered (SSR) environments, Angular supports Hydration via provideClientHydration(). During SSR, Angular serializes the application's runtime state (such as cached HttpClient responses) and outputs it into the HTML stream as a",
"evidence": "osv:CVE-2026-54267",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-54267",
"aliases": [
"CVE-2026-54267",
"GHSA-rgjc-h3x7-9mwg"
],
"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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/angular/angular",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
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},
{
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{
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{
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"database_specific": {
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"source": "CPE_RANGE"
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"source": "CPE_RANGE"
},
{
"range": [
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],
"source": "REFERENCES_COMMIT"
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}
}
],
"modified": "2026-10-28T02:30:50.840514500Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54267.json",
"https://github.com/angular/angular/security/advisories/GHSA-rgjc-h3x7-9mwg",
"https://nvd.nist.gov/vuln/detail/CVE-2026-54267",
"https://github.com/angular/angular/commit/6bde84fa8e6a5770b54040fbbc9bf10d5d0386fa",
"https://github.com/angular/angular/pull/69064"
],
"provider_metadata": {
"cwe_ids": [
"CWE-471",
"CWE-79"
],
"cna_assigner": "GitHub_M",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": ">= 22.0.0-next.0 < 22.0.1"
},
{
"last_affected": ">= 22.0.0-next.0 < 22.0.1"
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{
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},
{
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{
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{
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}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54267.json"
}
},
"related_cves": [
{
"value": "CVE-2026-54267",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 519356,
"published_at": "2026-06-22T15:30:48.699+00:00"
}