{"answers":{"affected":"16 open source packages ship an affected version, including symfony/security, symfony/security-http and symfony/symfony. It affects 1 product.","exploited":"There is no known exploitation of CVE-2015-8124 in the wild and no public exploit code.","fix":"Upgrade symfony/security to a fixed version for your release line: 2.3.35, 2.6.12 or 2.7.7.","what":"CVE-2015-8124 is a medium-severity authentication bypass vulnerability in Sensiolabs Symfony, published on 7 Dec 2015. 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-2015-8124 and fix it if it is affected.\n\nWhat it is: CVE-2015-8124 is a medium-severity authentication bypass vulnerability in Sensiolabs Symfony, published on 7 Dec 2015. 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-2015-8124 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- symfony/security (Packagist): affected from 2.3.0; fixed in 2.3.35\n- symfony/security (Packagist): affected from 2.3.0; fixed in 2.3.35\n- symfony/security (Packagist): affected from 2.4.0; fixed in 2.6.12\n- symfony/security (Packagist): affected from 2.4.0; fixed in 2.6.12\n- symfony/security (Packagist): affected from 2.7.0; fixed in 2.7.7\n- symfony/security (Packagist): affected from 2.7.0; fixed in 2.7.7\n- symfony/security-http (Packagist): affected from 2.4.0; fixed in 2.6.12\n- symfony/security-http (Packagist): affected from 2.4.0; fixed in 2.6.12\n- symfony/security-http (Packagist): affected from 2.7.0; fixed in 2.7.7\n- symfony/security-http (Packagist): affected from 2.7.0; fixed in 2.7.7\n- symfony/symfony (Packagist): affected from 2.3.0; fixed in 2.3.35\n- symfony/symfony (Packagist): affected from 2.3.0; fixed in 2.3.35\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-2015-8124/ (Markdown: https://insights.sbomify.com/CVE-2015-8124/index.md)","id":"CVE-2015-8124","markdown":"https://insights.sbomify.com/CVE-2015-8124/index.md","name":"CVE-2015-8124","record":{"aliases":["DEBIAN-CVE-2015-8124","GHSA-j5jh-hpr4-h332"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Symfony PHP framework","requires_auth":"none","summary":"Remote attackers can hijack web sessions via session fixation in the Remember Me feature, requiring user interaction to exploit.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"symfony","vendor":"sensiolabs"}],"cvss":{"score":6.8,"severity":"medium","source":"nvd","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","version":"2.0"},"cwes":[],"description":"Session fixation vulnerability in the \"Remember Me\" login feature in Symfony 2.3.x before 2.3.35, 2.6.x before 2.6.12, and 2.7.x before 2.7.7 allows remote attackers to hijack web sessions via a session id.","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 Session Fixation Vulnerability","id":"CVE-2015-8124","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"sensiolabs:symfony","products":["sensiolabs:symfony"],"type":"auth_bypass","year":"2015"},"n_packages":16,"n_references":7,"next":{"headline":"Symfony Vulnerable to Timing Attack","id":"CVE-2015-8125"},"packages":[{"ecosystem":"Packagist","fixed":["2.3.35"],"introduced":["2.3.0"],"last_affected":[],"package":"symfony/security","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.3.35"],"introduced":["2.3.0"],"last_affected":[],"package":"symfony/security","purl":"pkg:composer/symfony/security","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.6.12"],"introduced":["2.4.0"],"last_affected":[],"package":"symfony/security","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.6.12"],"introduced":["2.4.0"],"last_affected":[],"package":"symfony/security","purl":"pkg:composer/symfony/security","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.7.7"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/security","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.7.7"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/security","purl":"pkg:composer/symfony/security","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.6.12"],"introduced":["2.4.0"],"last_affected":[],"package":"symfony/security-http","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.6.12"],"introduced":["2.4.0"],"last_affected":[],"package":"symfony/security-http","purl":"pkg:composer/symfony/security-http","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.7.7"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/security-http","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.7.7"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/security-http","purl":"pkg:composer/symfony/security-http","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.3.35"],"introduced":["2.3.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.3.35"],"introduced":["2.3.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.6.12"],"introduced":["2.4.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.6.12"],"introduced":["2.4.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.7.7"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/symfony","purl":null,"source":"GHSA-j5jh-hpr4-h332"},{"ecosystem":"Packagist","fixed":["2.7.7"],"introduced":["2.7.0"],"last_affected":[],"package":"symfony/symfony","purl":"pkg:composer/symfony/symfony","source":"GHSA-j5jh-hpr4-h332"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2015-8123"},"products":["n/a"],"published":"2015-12-07","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":"Remote attackers can hijack web sessions via session fixation in the Remember Me feature, requiring user interaction to exploit.","url":"https://insights.sbomify.com/CVE-2015-8124/"}