# CVE-2026-32136: GO-2026-4686 - AdGuard Home: HTTP/2 Cleartext (h2c) Upgrade Authentication Bypass in github.com/AdguardTeam/AdGuardHome

Source: https://junglewise.ai/threats/cve-2026-32136-adguard-home-http-2-cleartext-h2c-upgrade-authentication-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-12  
License: CC BY 4.0 with a link back

CVE-2026-32136 · Severity: low · CVSS 3.1 · Published 2026-03-12

AdGuard Home: HTTP/2 Cleartext (h2c) Upgrade Authentication Bypass in github.com/AdguardTeam/AdGuardHome

Technologies: [github.com/AdguardTeam/AdGuardHome (Go)](https://junglewise.ai/threats/technologies/github-com-adguardteam-adguardhome). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-32136 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-32136 being exploited in the wild.

**How severe is CVE-2026-32136?** Low severity, with a CVSS score of 3.1, published 12 March 2026.

**Which products and versions are affected?** github.com/AdguardTeam/AdGuardHome (Go) SEMVER:introduced=0,fixed=0.107.73.

**Is there a fix for CVE-2026-32136?** Yes. github.com/AdguardTeam/AdGuardHome (Go): upgrade to 0.107.73 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-32136?** Check whether you run github.com/AdguardTeam/AdGuardHome (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/AdguardTeam/AdGuardHome (Go): upgrade to 0.107.73 or later

  ```sh
  go get github.com/AdguardTeam/AdGuardHome@v0.107.73
  ```


## Affected products

- github.com/AdguardTeam/AdGuardHome (Go) SEMVER:introduced=0,fixed=0.107.73

## Identifiers

- CVE-2026-32136
- GHSA-5fg6-wrq4-w5gh
- GO-2026-4686

## Related threats

- [AdGuard Home DNS state reduction and source-port oracle in DoQ forwarding](https://junglewise.ai/threats/cve-2026-47703-adguard-home-dns-state-reduction-and-source-port-oracle-in-doq)
- [GO-2024-3184 - Adguard Home arbitrary file read vulnerability in github.com/AdguardTeam/AdGuardHome](https://junglewise.ai/threats/cve-2024-36814-adguard-home-arbitrary-file-read-vulnerability)
- [GO-2024-2924 - AdGuardHome privilege escalation vulnerability in github.com/AdguardTeam/AdGuardHome](https://junglewise.ai/threats/cve-2024-36586-adguardhome-privilege-escalation-vulnerability)
- [AdGuardHome vulnerable to Cross-Site Request Forgery](https://junglewise.ai/threats/cve-2022-32175-adguardhome-vulnerable-to-cross-site-request-forgery)