{"answers":{"affected":"20 open source packages ship an affected version, including symfony/http-foundation and symfony/symfony. It affects 2 products.","exploited":"There is no known exploitation of CVE-2018-11386 in the wild and no public exploit code.","fix":"Upgrade symfony/http-foundation to a fixed version for your release line: 2.7.48, 2.8.41, 3.3.17 or 3.4.11.","what":"CVE-2018-11386 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 13 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-11386 and fix it if it is affected.\n\nWhat it is: CVE-2018-11386 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 13 Jun 2018. 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-2018-11386 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- symfony/http-foundation (Packagist): affected from 2.7.0; fixed in 2.7.48\n- symfony/http-foundation (Packagist): affected from 2.7.0; fixed in 2.7.48\n- symfony/http-foundation (Packagist): affected from 2.8.0; fixed in 2.8.41\n- symfony/http-foundation (Packagist): affected from 2.8.0; fixed in 2.8.41\n- symfony/http-foundation (Packagist): affected from 3.3.0; fixed in 3.3.17\n- symfony/http-foundation (Packagist): affected from 3.3.0; fixed in 3.3.17\n- symfony/http-foundation (Packagist): affected from 3.4.0; fixed in 3.4.11\n- symfony/http-foundation (Packagist): affected from 3.4.0; fixed in 3.4.11\n- symfony/http-foundation (Packagist): affected from 4.0.0; fixed in 4.0.11\n- symfony/http-foundation (Packagist): affected from 4.0.0; fixed in 4.0.11\n- symfony/symfony (Packagist): affected from 2.7.0; fixed in 2.7.48\n- symfony/symfony (Packagist): affected from 2.7.0; fixed in 2.7.48\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-2018-11386/ (Markdown: https://insights.sbomify.com/CVE-2018-11386/index.md)","id":"CVE-2018-11386","markdown":"https://insights.sbomify.com/CVE-2018-11386/index.md","name":"CVE-2018-11386","record":{"aliases":["DEBIAN-CVE-2018-11386","GHSA-r2rq-3h56-fqm4","UBUNTU-CVE-2018-11386"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Symfony HttpFoundation","requires_auth":"none","summary":"Attackers can cause denial of service in Symfony applications using PDOSessionHandler under specific configurations with crafted payloads.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"symfony","vendor":"sensiolabs"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.","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 DoS","id":"CVE-2018-11386","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"debian:debian_linux","products":["debian:debian_linux","sensiolabs:symfony"],"type":"denial_of_service","year":"2018"},"n_packages":20,"n_references":5,"next":{"headline":"File upload in n/a","id":"CVE-2018-11392"},"packages":[{"ecosystem":"Packagist","fixed":["2.7.48"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/http-foundation","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.7.48"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/http-foundation","purl":"pkg:composer/symfony/http-foundation","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.8.41"],"introduced":["2.8.0"],"last_affected":[],"package":"symfony/http-foundation","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.8.41"],"introduced":["2.8.0"],"last_affected":[],"package":"symfony/http-foundation","purl":"pkg:composer/symfony/http-foundation","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.3.17"],"introduced":["3.3.0"],"last_affected":[],"package":"symfony/http-foundation","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.3.17"],"introduced":["3.3.0"],"last_affected":[],"package":"symfony/http-foundation","purl":"pkg:composer/symfony/http-foundation","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.4.11"],"introduced":["3.4.0"],"last_affected":[],"package":"symfony/http-foundation","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.4.11"],"introduced":["3.4.0"],"last_affected":[],"package":"symfony/http-foundation","purl":"pkg:composer/symfony/http-foundation","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["4.0.11"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/http-foundation","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["4.0.11"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/http-foundation","purl":"pkg:composer/symfony/http-foundation","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.7.48"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.7.48"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.8.41"],"introduced":["2.8.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["2.8.41"],"introduced":["2.8.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.3.17"],"introduced":["3.3.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.3.17"],"introduced":["3.3.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.4.11"],"introduced":["3.4.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["3.4.11"],"introduced":["3.4.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["4.0.11"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-r2rq-3h56-fqm4"},{"ecosystem":"Packagist","fixed":["4.0.11"],"introduced":["4.0.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-r2rq-3h56-fqm4"}],"prev":{"headline":"Symfony Session Fixation Vulnerability","id":"CVE-2018-11385"},"products":["n/a"],"published":"2018-06-13","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can cause denial of service in Symfony applications using PDOSessionHandler under specific configurations with crafted payloads.","url":"https://insights.sbomify.com/CVE-2018-11386/"}