CVE-2026-19177: CVE-2026-19177 Insufficient validation of untrusted input in UI

unknownCVE-2026-19177

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

CSIRTS triage

vendor: Google product: ChromeOther

What: Insufficient validation of untrusted input in the UI component.
Who is affected: Microsoft Edge (Chromium-based) users who ingest the affected Chromium version.
Urgency: Moderate urgency; input validation flaws can enable multiple attack vectors depending on context.
Action: Update Microsoft Edge to the patched Chromium version referenced in Google Chrome Releases.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-19177

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-191770.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-19177	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] Google Chrome: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Microsoft Edge (August 12, 2026)cert-fr-avis
unknownDSA-6422-1 chromium - security updatedebian
unknownGoogle Chrome Multiple Vulnerabilitieshkcert
unknownMultiple vulnerabilities in Google Chrome (August 07, 2026)cert-fr-avis
highCVE-2026-19177: Insufficient validation of untrusted input in UI in Google Chrome prior to 151.0.7922.109 allo…nvd

Recent advisories for CVE-2026-19177 Insufficient validation

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-19177: Insufficient validation of untrusted input in UI in Google Chrome prior to 151.0.7922.109 allo…nvd · 2026-08-06