{"answers":{"affected":"16 open source packages ship an affected version, including symfony/routing and symfony/symfony. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-48784 in the wild and no public exploit code.","fix":"Upgrade symfony/routing to a fixed version for your release line: 5.4.53, 6.4.41, 7.4.13 or 8.0.13.","what":"CVE-2026-48784 is a medium-severity vulnerability in Sensiolabs Symfony, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-48784 and fix it if it is affected.\n\nWhat it is: CVE-2026-48784 is a medium-severity vulnerability in Sensiolabs Symfony, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-48784 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- symfony/routing (Packagist): affected all versions; fixed in 5.4.53\n- symfony/routing (Packagist): affected all versions; fixed in 5.4.53\n- symfony/routing (Packagist): affected from 6.0.0; fixed in 6.4.41\n- symfony/routing (Packagist): affected from 6.0.0; fixed in 6.4.41\n- symfony/routing (Packagist): affected from 7.0.0; fixed in 7.4.13\n- symfony/routing (Packagist): affected from 7.0.0; fixed in 7.4.13\n- symfony/routing (Packagist): affected from 8.0.0; fixed in 8.0.13\n- symfony/routing (Packagist): affected from 8.0.0; fixed in 8.0.13\n- symfony/symfony (Packagist): affected all versions; fixed in 5.4.53\n- symfony/symfony (Packagist): affected all versions; fixed in 5.4.53\n- symfony/symfony (Packagist): affected from 6.0.0; fixed in 6.4.41\n- symfony/symfony (Packagist): affected from 6.0.0; fixed in 6.4.41\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-2026-48784/ (Markdown: https://insights.sbomify.com/CVE-2026-48784/index.md)","id":"CVE-2026-48784","markdown":"https://insights.sbomify.com/CVE-2026-48784/index.md","name":"CVE-2026-48784","record":{"aliases":["DEBIAN-CVE-2026-48784","GHSA-h5x3-xfc9-m39h","UBUNTU-CVE-2026-48784"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP routing library","requires_auth":"none","summary":"Attackers can craft route parameters to generate URLs that redirect to unintended paths due to flawed dot-segment encoding in Symfony's UrlGenerator.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"symfony","vendor":"sensiolabs"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"},{"id":"CWE-172","name":"Improper Encoding or Decoding of Data"}],"description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, UrlGenerator::doGenerate() used strtr() dot-segment encoding that skipped every other chained ../ or ./ segment, allowing attacker-controlled route parameters to generate URLs that collapse to a different path under RFC 3986 normalization. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.","ecosystems":["Packagist"],"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":"Symfony: UrlGenerator Dot-Segment Encoding Skips Every Other Chained `../` or `./` → Generated URL Collapses Off-Route Under RFC 3986 Normalization","id":"CVE-2026-48784","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"sensiolabs:symfony","products":["sensiolabs:symfony"],"type":"open_redirect","year":"2026"},"n_packages":16,"n_references":5,"next":{"headline":"Apptainer: Incorrect path matching for 'limit container paths' directive","id":"CVE-2026-48785"},"packages":[{"ecosystem":"Packagist","fixed":["5.4.53"],"introduced":["0"],"last_affected":[],"package":"symfony/routing","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["5.4.53"],"introduced":["0"],"last_affected":[],"package":"symfony/routing","purl":"pkg:composer/symfony/routing","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["6.4.41"],"introduced":["6.0.0"],"last_affected":[],"package":"symfony/routing","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["6.4.41"],"introduced":["6.0.0"],"last_affected":[],"package":"symfony/routing","purl":"pkg:composer/symfony/routing","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["7.4.13"],"introduced":["7.0.0"],"last_affected":[],"package":"symfony/routing","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["7.4.13"],"introduced":["7.0.0"],"last_affected":[],"package":"symfony/routing","purl":"pkg:composer/symfony/routing","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["8.0.13"],"introduced":["8.0.0"],"last_affected":[],"package":"symfony/routing","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["8.0.13"],"introduced":["8.0.0"],"last_affected":[],"package":"symfony/routing","purl":"pkg:composer/symfony/routing","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["5.4.53"],"introduced":["0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["5.4.53"],"introduced":["0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["6.4.41"],"introduced":["6.0.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["6.4.41"],"introduced":["6.0.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["7.4.13"],"introduced":["7.0.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["7.4.13"],"introduced":["7.0.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["8.0.13"],"introduced":["8.0.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-h5x3-xfc9-m39h"},{"ecosystem":"Packagist","fixed":["8.0.13"],"introduced":["8.0.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-h5x3-xfc9-m39h"}],"prev":{"headline":"Postiz has an unauthenticated billing-enforcement bypass via /public/modify-subscription","id":"CVE-2026-48783"},"products":["routing","symfony"],"published":"2026-07-14","related":[{"cvss_score":9.8,"headline":"Improper Input Validation in Symfony","id":"CVE-2019-11325","kev_date_added":null,"published":"2019-11-21"},{"cvss_score":9.8,"headline":"Symfony Incorrect Access Control","id":"CVE-2017-11365","kev_date_added":null,"published":"2019-05-23"},{"cvss_score":9.8,"headline":"Invalid HTTP method overrides allow possible XSS or other attacks in Symfony","id":"CVE-2019-10913","kev_date_added":null,"published":"2019-05-16"},{"cvss_score":9.8,"headline":"Symfony Authentication Bypass","id":"CVE-2018-11407","kev_date_added":null,"published":"2018-06-13"},{"cvss_score":9.8,"headline":"Symfony Authentication Bypass","id":"CVE-2016-2403","kev_date_added":null,"published":"2017-02-07"},{"cvss_score":9.1,"headline":"Symfony: Identity Spoofing via Unanchored DN Regex in X509Authenticator","id":"CVE-2026-45063","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":8.8,"headline":"Symfony: OidcTokenHandler Accepts JWTs Missing aud/iss/exp Claims","id":"CVE-2026-45069","kev_date_added":null,"published":"2026-07-14"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["symfony"]},"summary":"Attackers can craft route parameters to generate URLs that redirect to unintended paths due to flawed dot-segment encoding in Symfony's UrlGenerator.","url":"https://insights.sbomify.com/CVE-2026-48784/"}