CVE-2026-4458Disclosure(apple / chrome)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Use after free in Extensions in Google Chrome prior to 146.0.7680.153 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html

Other references

https://issues.chromium.org/issues/489619753

Weakness type (CWE)

CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

chrome
linux_kernel
macos
windows

Threat summary

4 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 3 signals
Disclosure: 2 classified signals
General: 2 classified signals
Peaked 1d ago at 3 mentions (2026-03-20); latest day: 1
4 total mentions across 2 days

Affected systems

Vendors

apple google linux microsoft

Products

chromelinux_kernelmacoswindows

1 version affected across 4 products

Deep dive

Activity timeline4 mentions / 2d

Signal classification2 categories

Disclosure

250.0%

General

250.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-20	3	Disclosure2General1
2026-03-22	1	General1

Full discourse4 posts

Vulmon Vulnerability Feed@VulmonFeeds202d
General
CVE-2026-4458 Use-After-Free Vulnerability in Google Chrome Extensions Enables Heap Corruption Exploit https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-4458
Post summary
The entry identifies a use‑after‑free flaw in Chrome extensions that could cause heap corruption, but it does not provide PoC, exploit code, patch details, or evidence of real‑world exploitation.
0000169
4.0K followersView on X
The Hacker Wire@TheHackerWire200d
General
🟠 CVE-2026-4458 - High Use after free in Extensions in Google Chrome prior to 146.0.7680.153 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a cra... https://www.thehackerwire.com/vulnerability/CVE-2026-4458/ https://t.co/tphyGqmpTL
Post summary
CVE-2026-4458 describes a use-after-free flaw in Google Chrome extensions that can cause heap corruption; no PoC, exploit tool, patch, or active exploitation is reported.
0000042
142 followersView on X
VulDB 🛡@vuldb202d
Disclosure
We have just added an important vulnerability affecting Google Chrome (CVE-2026-4458) https://vuldb.com/?id.351885
Post summary
The text announces the addition of CVE-2026-4458, a Google Chrome vulnerability, to a public database, indicating a new disclosure without additional exploit or mitigation details.
0000074
2.1K followersView on X
CVE@CVEnew202d
Disclosure
CVE-2026-4458 Use after free in Extensions in Google Chrome prior to 146.0.7680.153 allowed an attacker who convinced a user to install a malicious extension to potentially exploit h… https://www.cve.org/CVERecord?id=CVE-2026-4458
Post summary
The post provides a brief technical description of CVE‑2026‑4458 as a use‑after‑free flaw in Google Chrome extensions, highlighting the risk of malicious installs, but does not include any PoC, exploit code, or patch information.
0000087
56.8K followersView on X

CPE platform detail4 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

4 of 4 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	apple	macos	-	-	-
App	google	chrome	-	-	-
OS	linux	linux_kernel	-	-	-
OS	microsoft	windows	-	-	-

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What researchers are saying

CVE-2026-4458

Vulmon Vulnerability Feed@VulmonFeedsGeneral

The entry identifies a use‑after‑free flaw in Chrome extensions that could cause heap corruption, but it does not provide PoC, exploit code, patch details, or evidence of real‑world exploitation.

The Hacker Wire@TheHackerWireGeneral

CVE-2026-4458 describes a use-after-free flaw in Google Chrome extensions that can cause heap corruption; no PoC, exploit tool, patch, or active exploitation is reported.

VulDB 🛡@vuldbDisclosure

The text announces the addition of CVE-2026-4458, a Google Chrome vulnerability, to a public database, indicating a new disclosure without additional exploit or mitigation details.

CVE@CVEnewDisclosure

The post provides a brief technical description of CVE‑2026‑4458 as a use‑after‑free flaw in Google Chrome extensions, highlighting the risk of malicious installs, but does not include any PoC, exploit code, or patch information.