{"answers":{"affected":"8 open source packages ship an affected version, including io.quarkus:quarkus-vertx-http. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-39852 in the wild and no public exploit code.","fix":"Upgrade io.quarkus:quarkus-vertx-http to a fixed version for your release line: 3.20.6.1, 3.27.3.1, 3.33.1.1 or 3.35.1.1.","what":"CVE-2026-39852 is a high-severity authentication bypass vulnerability in quarkusio quarkus, published on 5 May 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-2026-39852 and fix it if it is affected.\n\nWhat it is: CVE-2026-39852 is a high-severity authentication bypass vulnerability in quarkusio quarkus, published on 5 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-39852 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- io.quarkus:quarkus-vertx-http (Maven): affected all versions; fixed in 3.20.6.1\n- io.quarkus:quarkus-vertx-http (Maven): affected all versions; fixed in 3.20.6.1\n- io.quarkus:quarkus-vertx-http (Maven): affected from 3.21.0; fixed in 3.27.3.1\n- io.quarkus:quarkus-vertx-http (Maven): affected from 3.21.0; fixed in 3.27.3.1\n- io.quarkus:quarkus-vertx-http (Maven): affected from 3.30.0; fixed in 3.33.1.1\n- io.quarkus:quarkus-vertx-http (Maven): affected from 3.30.0; fixed in 3.33.1.1\n- io.quarkus:quarkus-vertx-http (Maven): affected from 3.34.0; fixed in 3.35.1.1\n- io.quarkus:quarkus-vertx-http (Maven): affected from 3.34.0; fixed in 3.35.1.1\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-2026-39852/ (Markdown: https://insights.sbomify.com/CVE-2026-39852/index.md)","id":"CVE-2026-39852","markdown":"https://insights.sbomify.com/CVE-2026-39852/index.md","name":"CVE-2026-39852","record":{"aliases":["CLEANSTART-2026-CY16294","CLEANSTART-2026-QF31324","CLEANSTART-2026-SH82729","ECHO-7228-fbde-6e25","GHSA-rc95-pcm8-65v9","MINI-jc6v-6f3m-98c2","MINI-m269-qh6j-hv5q","MINI-m2mf-36r4-2fvf","MINI-wcpr-p4qv-28wq"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Java web framework","requires_auth":"none","summary":"Attackers can bypass path-based authorization policies in Quarkus applications by appending semicolons to URLs, accessing protected endpoints without proper credentials.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"quarkus","vendor":"quarkus"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-551","name":"Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"},{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Quarkus is a Java framework for building cloud-native applications. In versions prior to 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2, a path normalization inconsistency between the security layer and the routing layer allows unauthenticated or lower-privileged users to bypass HTTP path-based authorization policies. Quarkus's security layer performs authorization checks on the raw URL path which preserves matrix parameters (semicolons), while RESTEasy Reactive's routing layer strips matrix parameters before matching endpoints. An attacker can append a semicolon and arbitrary text to a request URL (e.g., /api/admin;anything) to bypass policies protecting /api/admin while still routing to the protected endpoint. This issue has been fixed in versions 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Quarkus authorization bypass via semicolon path normalization inconsistency","id":"CVE-2026-39852","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":8,"n_references":1,"next":{"headline":"osslsigncode has a Stack Buffer Overflow via Unbounded Digest Copy During Signature Verification","id":"CVE-2026-39853"},"packages":[{"ecosystem":"Maven","fixed":["3.20.6.1"],"introduced":["0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":null,"source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.20.6.1"],"introduced":["0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.27.3.1"],"introduced":["3.21.0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":null,"source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.27.3.1"],"introduced":["3.21.0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.33.1.1"],"introduced":["3.30.0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":null,"source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.33.1.1"],"introduced":["3.30.0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.35.1.1"],"introduced":["3.34.0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":null,"source":"GHSA-rc95-pcm8-65v9"},{"ecosystem":"Maven","fixed":["3.35.1.1"],"introduced":["3.34.0"],"last_affected":[],"package":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","source":"GHSA-rc95-pcm8-65v9"}],"prev":{"headline":"Saleor has a user enumeration vulnerability due to different error messages","id":"CVE-2026-39851"},"products":["quarkus"],"published":"2026-05-05","related":[{"cvss_score":9.8,"headline":"Code injection in quarkus dev ui config editor","id":"CVE-2022-4116","kev_date_added":null,"published":"2022-11-22"},{"cvss_score":9.8,"headline":"Quarkus does not terminate HTTP requests header context","id":"CVE-2022-2466","kev_date_added":null,"published":"2022-08-31"},{"cvss_score":9.1,"headline":"Io.quarkus:quarkus-security-webauthn: quarkus webauthn unexpected authentication bypass","id":"CVE-2024-12225","kev_date_added":null,"published":"2025-05-06"},{"cvss_score":8.8,"headline":"Privilege escalation in quarkus","id":"CVE-2022-0981","kev_date_added":null,"published":"2022-03-23"},{"cvss_score":8.6,"headline":"Quarkus: json payload getting processed prior to security checks when rest resources are used with annotations.","id":"CVE-2023-6267","kev_date_added":null,"published":"2024-01-25"},{"cvss_score":8.1,"headline":"Quarkus: http security policy bypass","id":"CVE-2023-4853","kev_date_added":null,"published":"2023-09-20"}],"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":"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-17","vendors":["quarkusio"]},"summary":"Attackers can bypass path-based authorization policies in Quarkus applications by appending semicolons to URLs, accessing protected endpoints without proper credentials.","url":"https://insights.sbomify.com/CVE-2026-39852/"}