CVE-2026-78898 (GCVE-0-2026-78898)
Vulnerability from cvelistv5 – Published: 2026-08-25 20:10 – Updated: 2026-08-25 20:10
VLAI
EPSS
VEX
Summary
Incorrect authorization in Downloads in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)
Severity
No CVSS data available.
CWE
- CWE-863 - Incorrect authorization
Assigner
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"product": "Chrome",
"vendor": "Google",
"versions": [
{
"lessThan": "152.0.7977.65",
"status": "affected",
"version": "152.0.7977.65",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Incorrect authorization in Downloads in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "Incorrect authorization",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T20:10:16.490Z",
"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
"shortName": "Chrome"
},
"references": [
{
"url": "https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html"
},
{
"url": "https://issues.chromium.org/issues/499423269"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28",
"assignerShortName": "Chrome",
"cveId": "CVE-2026-78898",
"datePublished": "2026-08-25T20:10:16.490Z",
"dateReserved": "2026-08-25T06:03:55.906Z",
"dateUpdated": "2026-08-25T20:10:16.490Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-78898",
"date": "2026-08-26",
"epss": "0.00317",
"percentile": "0.2392"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-78898\",\"sourceIdentifier\":\"chrome-cve-admin@google.com\",\"published\":\"2026-08-25T21:17:47.183\",\"lastModified\":\"2026-08-26T16:22:04.003\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Incorrect authorization in Downloads in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)\"}],\"affected\":[{\"source\":\"chrome-cve-admin@google.com\",\"affectedData\":[{\"vendor\":\"Google\",\"product\":\"Chrome\",\"versions\":[{\"version\":\"152.0.7977.65\",\"lessThan\":\"152.0.7977.65\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"weaknesses\":[{\"source\":\"chrome-cve-admin@google.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"references\":[{\"url\":\"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html\",\"source\":\"chrome-cve-admin@google.com\"},{\"url\":\"https://issues.chromium.org/issues/499423269\",\"source\":\"chrome-cve-admin@google.com\"}]}}",
"redhat_vex": {
"current_release_date": "2026-08-26T16:25:02+00:00",
"cve": "CVE-2026-78898",
"id": "CVE-2026-78898",
"initial_release_date": "2026-08-25T20:10:16.490000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "chromium-browser: Google Chrome: System access restriction bypass via incorrect authorization in Downloads",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-78898.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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