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Full vulnerability report · 2026
CVE-2026-7954High confidence

Race in Shared Storage in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page

Google · Chrome

3.1LowCVSS 3.1
Recommended action
Scheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityLowOperational priority:Low, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.18% for the current model date.

Compensating controls

  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Google Chrome and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: No default targetRemediation target: Normal maintenance

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

4 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcechromiumVendor fix publishedDebian records a fixed source-package version for this release.148.0.7778.96-1~deb13u1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcechromiumVendor fix publishedDebian records a fixed source-package version for this release.148.0.7778.96-1~deb12u1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcechromiumVendor fix publishedDebian records a fixed source-package version for this release.148.0.7778.96-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcechromiumVendor fix publishedDebian records a fixed source-package version for this release.148.0.7778.96-1Debian Security Tracker ↗Source updated 6 Oct 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-28011

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

Race in Shared Storage in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

What

Race in Shared Storage in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Race in Shared Storage in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-362 ↗

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'). The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-362
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-1394Google Chrome/Microsoft Edge: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Google Chrome/Microsoft Edge ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, darunter möglicherweise Codeausführung, Umgehung von Sicherheitsmaßnahmen, Denial-of-Service sowie Datenmanipulation oder -offenlegung.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0557Multiples vulnérabilités dans Microsoft Edge

CVE-2026-7944 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7945 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7946 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7947 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7948 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7949 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7950 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7951 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7952 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7953 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7954 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7955 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7956 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7957 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7958 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7959 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7960 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7961 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7962 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7963 du 07 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-7964

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-014536GoogleのGoogle Chromeにおける競合状態に関する脆弱性

Google Chrome バージョン 148.0.7778.96 未満において、共有ストレージの競合が原因でレンダラープロセスが侵害される可能性がありました。リモート攻撃者は巧妙に作成された HTML ページを通じてクロスオリジンデータを漏洩させることができます。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6788MS 5월 보안 위협에 따른 정기 보안 업데이트 권고

| | Microsoft Edge(Chromium 기반) | CVE-2026-7947 | Insufficient validation of untrusted input in Network | | Microsoft Edge(Chromium 기반) | CVE-2026-7948 | Race in Chromoting | | Microsoft Edge(Chromium 기반) | CVE-2026-7949 | Out of bounds read in Skia | | Microsoft Edge(Chromium 기반) | CVE-2026-7950 | Out of bounds read and write in GFX | | Microsoft Edge(Chromium 기반) | CVE-2026-7951 | Out of bounds write in WebRTC | | Microsoft Edge(Chromium 기반) | CVE-2026-7952 | Insufficient policy enforcement in Extensions | | Microsoft Edge(Chromium 기반) | CVE-2026-7953 | Insufficient validation of untrusted input in Omnibox | | Microsoft Edge(Chromium 기반) | CVE-2026-7954 | Race in Shared Storage | | Microsoft Edge(Chromium 기반) | CVE-2026-7955 | Uninitialized Use in GPU | | Microsoft Edge(Chromium 기반) | CVE-2026-7956 | Use after free in Navigation | | Microsoft Edge(Chromium 기반) | CVE-2026-7957 | Out of bounds write in Media | | Microsoft Edge(Chromium 기반) | CVE-2026-7958 | Inappropriate implementation in ServiceWorker | | Microsoft Edge(Chromium 기반) | CVE-2026-7959 | Inappropriate implementation in Navigation | | Microsoft Edge(Chromium 기반) | CVE-2026-7960 | Race in Speech | | Microsoft Edge(Chromium 기반) | CVE-2026-7961 | Insufficient validation of untrusted input in Permissions | | Microsoft Edge(Chromium 기

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0148Kwetsbaarheden verholpen in Microsoft Edge (Chromium)

A race condition vulnerability in Shared Storage of Google Chrome versions before 148.0.7778.96 allowed remote attackers compromising the renderer process to leak cross-origin data, affecting Chromium-based browsers including Microsoft Edge.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
Chrome: 148.0.7778.96 < 148.0.7778.96
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
Official vendor articles1 stored document

Linked articles are downloaded and versioned as source evidence. A CVE mention or approved update relationship does not, by itself, verify a fix for every product branch.

  • Chrome Releases: Stable Channel Update for Desktop →Original publisher ↗Searchable text snapshot · Captured 29 Sep 2026Chrome Releases Release updates from the Chrome team Stable Channel Update for Desktop Tuesday, May 5, 2026 The Chrome team is delighted to announce the promotion of Chrome 148 to the stable channel for Windows, Mac and Linux. This will roll out over the coming days/weeks. Chrome 148.0.7778.96 (Linux) 148.0.7778.96 /9
04

Evidence and provenance

Published 6 May 2026 · Last source change 6 May 2026, 21:55 UTC · CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-28011
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-7954 · cve.blacktree.nl