CVE-2026-5876 Vulnerability Analysis & Exploit Details

CVE-2026-5876
Vulnerability Scoring

6.5
/10
High Risk

If left unpatched, CVE-2026-5876 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2026-5876 Details

Status: Received on 08 Apr 2026, 22:16 UTC

Last updated: 🕓 11 Apr 2026, 04:17 UTC
Originally published on: 🕙 08 Apr 2026, 22:16 UTC

Time between publication and last update: 2 days

CVSS Release: version 3

CVSS3 Source

134c704f-9b21-4f2e-91b3-4a467353bcc0

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVE-2026-5876 Vulnerability Summary

CVE-2026-5876: Side-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Assessing the Risk of CVE-2026-5876

Access Complexity Graph

The exploitability of CVE-2026-5876 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-5876

With low attack complexity and no required privileges, CVE-2026-5876 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-5876, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-5876, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-5876 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: None
    CVE-2026-5876 poses no threat to data integrity.
  • Availability: None
    CVE-2026-5876 does not impact system availability.

CVE-2026-5876 References

External References

CWE Common Weakness Enumeration

CWE-1300

CAPEC Common Attack Pattern Enumeration and Classification

  • Black Box Reverse Engineering CAPEC-189 An adversary discovers the structure, function, and composition of a type of computer software through black box analysis techniques. 'Black Box' methods involve interacting with the software indirectly, in the absence of direct access to the executable object. Such analysis typically involves interacting with the software at the boundaries of where the software interfaces with a larger execution environment, such as input-output vectors, libraries, or APIs. Black Box Reverse Engineering also refers to gathering physical side effects of a hardware device, such as electromagnetic radiation or sounds.
  • Eavesdropping on a Monitor CAPEC-699 An Adversary can eavesdrop on the content of an external monitor through the air without modifying any cable or installing software, just capturing this signal emitted by the cable or video port, with this the attacker will be able to impact the confidentiality of the data without being detected by traditional security tools

Protect Your Infrastructure against CVE-2026-5876: Combat Critical CVE Threats

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