CVE-2026-79148

Published Aug 25, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Description

Off-by-one error in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to potentially read memory inside the sandbox via a crafted Chrome extension. (Chromium security severity: Low)

Analysis

Technical impact

An off‑by‑one error in Chrome’s Developer Tools allows a remote attacker, who can trick a user into installing a tailored extension, to read memory inside the browser’s sandbox. This can expose confidential data such as credentials or code, though it does not provide code execution or direct control over the system.

Affected Systems

The issue affects Google Chrome versions prior to 152.0.7977.65 on desktop platforms. Users running earlier builds are at risk until they upgrade to the fixed release or later.

Risk and Exploitability

EPSS score is below 1% and the vulnerability is not listed in CISA’s KEV catalog, indicating no evidence of active exploitation. The CVSS score of 9.1 indicates high severity, but the likelihood of successful exploitation remains low due to the need for a malicious extension delivered via social engineering. Updating mitigates the risk completely.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Google

Chrome

affected

Version	Status	Constraints
`152.0.7977.65`	affected	< 152.0.7977.65

Configuration 1 [-]

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

No data.

Vendor Product Versions

Google

Chrome

Version	Status	Scheme	Platform
`[152.0.7977.65,152.0.7977.65)`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Update Chrome to version 152.0.7977.65 or later.
Disable or remove untrusted extensions and review extension permissions.
Configure Chrome to automatically apply updates or regularly check for the latest releases.

Generated by OpenCVE AI on August 26, 2026 at 21:53 UTC.

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4771-1	chromium security update
Debian DSA	DSA-6482-1	chromium security update

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.342% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html
https://issues.chromium.org/issues/532303080

History

Aug 31, 2026 5:00 PM Affected versions updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:google:chrome::::::::

Aug 26, 2026 10:15 PM Title updated View changes

Type	Values Removed	Values Added
Title	Off‑by‑One DevTools Error Allows Memory Disclosure via Crafted Chrome Extension

Aug 26, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Aug 26, 2026 12:30 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Google Google chrome
Vendors & Products		Google Google chrome

Aug 26, 2026 12:00 AM Title updated View changes

Type	Values Removed	Values Added
Title		Off‑by‑One DevTools Error Allows Memory Disclosure via Crafted Chrome Extension

Aug 25, 2026 8:30 PM Description updated. Weaknesses updated. Added references View changes

Type	Values Removed	Values Added
Description		Off-by-one error in DevTools in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to potentially read memory inside the sandbox via a crafted Chrome extension. (Chromium security severity: Low)
Weaknesses		CWE-193
References		https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html https://issues.chromium.org/issues/532303080