CVE-2026-32136 Vulnerability Analysis & Exploit Details

CVE-2026-32136
Vulnerability Scoring

9.8

/10

Critical Risk

As a catastrophic security flaw, CVE-2026-32136 has severe implications, demanding immediate intervention.

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: None
No user interaction is necessary for exploitation.

CVE-2026-32136 Details

Status: Analyzed

Last updated: 🕗 13 Mar 2026, 20:19 UTC
Originally published on: 🕙 11 Mar 2026, 22:16 UTC

Time between publication and last update: 1 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-32136 Vulnerability Summary

CVE-2026-32136: AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.73, an unauthenticated remote attacker can bypass all authentication in AdGuardHome by sending an HTTP/1.1 request that requests an upgrade to HTTP/2 cleartext (h2c). Once the upgrade is accepted, the resulting HTTP/2 connection is handled by the inner mux, which has no authentication middleware attached. All subsequent HTTP/2 requests on that connection are processed as fully authenticated, regardless of whether any credentials were provided. This vulnerability is fixed in 0.107.73.

Assessing the Risk of CVE-2026-32136

Access Complexity Graph

The exploitability of CVE-2026-32136 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-2026-32136

With low attack complexity and no required privileges, CVE-2026-32136 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-2026-32136, 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-2026-32136, 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-2026-32136 can result in unauthorized access to sensitive data, severely compromising data privacy.
Integrity: High
CVE-2026-32136 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
Availability: High
CVE-2026-32136 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-32136 References

External References

https://github.com/AdguardTeam/AdGuardHome/security/advisories/GHSA-5fg6-wrq4-w5gh

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

cpe:2.3:a:adguard:adguardhome:0.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.9:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.9:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.9:hotfix1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.9:hotfix1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.91:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.91:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.92:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.92:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.92:hotfix1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.92:hotfix1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.92:hotfix2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.92:hotfix2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.93:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.93:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.94:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.94:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.95:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.95:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.95:hotfix:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.95:hotfix:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.96:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.96:-:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.99.3:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.100.1:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.100.3:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.4:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.4:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.5:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.5:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.6:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.100.7:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.7:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.8:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.8:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.9:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.100.9:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.101.0:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.101.0:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.102.0:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.102.0:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.0:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.0:-:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.103.0:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.0:beta2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.0:beta2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.103.1:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.103.3:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.104.0:-:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.104.0:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.0:beta2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.0:beta2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.2:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.2:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.104.3:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.105.0:beta2:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.105.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.105.0:beta4:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.106.0:-:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.106.0:beta2:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.106.0:beta5:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.0:beta5:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.1:-:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.106.2:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.2:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.3:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.3:-:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.3:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.106.3:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta1:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta2:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta3:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta4:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta4:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta5:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.0:beta5:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.1:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.2:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.2:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.3:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.3:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.4:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.4:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.5:*:*:*:*:*:*:*
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cpe:2.3:a:adguard:adguardhome:0.107.6:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.6:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.7:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.7:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.8:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.8:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.9:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.9:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.10:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.10:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.11:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.11:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.12:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.12:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.13:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.13:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.14:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.14:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.15:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.15:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.16:*:*:*:*:*:*:*
cpe:2.3:a:adguard:adguardhome:0.107.16:*:*:*:*:*:*:*

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