{"answers":{"affected":"3 open source packages ship an affected version, including github.com/AdguardTeam/AdGuardHome. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32136 exists.","fix":"Upgrade github.com/AdguardTeam/AdGuardHome to 0.107.73 or later.","what":"CVE-2026-32136 is a critical authentication bypass vulnerability in AdguardTeam AdGuardHome, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-32136 and fix it if it is affected.\n\nWhat it is: CVE-2026-32136 is a critical authentication bypass vulnerability in AdguardTeam AdGuardHome, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32136 exists.\n\nAffected packages and fixed versions:\n- github.com/AdguardTeam/AdGuardHome (Go): affected all versions; fixed in 0.107.73\n- github.com/AdguardTeam/AdGuardHome (Go): affected all versions; fixed in 0.107.73\n- github.com/AdguardTeam/AdGuardHome (Go): affected all versions; fixed in 0.107.73\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-32136/ (Markdown: https://insights.sbomify.com/CVE-2026-32136/index.md)","id":"CVE-2026-32136","markdown":"https://insights.sbomify.com/CVE-2026-32136/index.md","name":"CVE-2026-32136","record":{"aliases":["GHSA-5fg6-wrq4-w5gh","GO-2026-4686"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"AdGuard Home","requires_auth":"none","summary":"Unauthenticated attackers can bypass all authentication in AdGuard Home by exploiting an HTTP/2 cleartext upgrade flaw, gaining full administrative access.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"adguardhome","vendor":"adguard"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":"2026-04-27","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-04-27T18:18:50Z","kind":"github_poc","ref":"https://github.com/0xdak/CVE-2026-32136_exploit","stars":0,"title":null}],"tier":"weaponised"},"has_fix":true,"headline":"AdGuard Home: HTTP/2 Cleartext (h2c) Upgrade Authentication Bypass","id":"CVE-2026-32136","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"DataEase SQL Injection Vulnerability","id":"CVE-2026-32137"},"packages":[{"ecosystem":"Go","fixed":["0.107.73"],"introduced":["0"],"last_affected":[],"package":"github.com/AdguardTeam/AdGuardHome","purl":null,"source":"GHSA-5fg6-wrq4-w5gh"},{"ecosystem":"Go","fixed":["0.107.73"],"introduced":["0"],"last_affected":[],"package":"github.com/AdguardTeam/AdGuardHome","purl":"pkg:golang/github.com/AdguardTeam/AdGuardHome","source":"GHSA-5fg6-wrq4-w5gh"},{"ecosystem":"Go","fixed":["0.107.73"],"introduced":["0"],"last_affected":[],"package":"github.com/AdguardTeam/AdGuardHome","purl":"pkg:golang/github.com/AdguardTeam/AdGuardHome","source":"GO-2026-4686"}],"prev":{"headline":"NanoMQ has Heap Buffer Overflow in URI Parameter Parsing","id":"CVE-2026-32135"},"products":["AdGuardHome"],"published":"2026-03-11","related":[{"cvss_score":6.3,"headline":"AdGuard Home: DoQ-to-UDP State Reduction and Source-Port Oracle","id":"CVE-2026-47703","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":5.4,"headline":"AdGuardHome - CSRF","id":"CVE-2022-32175","kev_date_added":null,"published":"2022-10-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-12","vendors":["AdguardTeam"]},"summary":"Unauthenticated attackers can bypass all authentication in AdGuard Home by exploiting an HTTP/2 cleartext upgrade flaw, gaining full administrative access.","url":"https://insights.sbomify.com/CVE-2026-32136/"}