{"answers":{"affected":"3 open source packages ship an affected version, including github.com/ory/hydra. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-8400 in the wild and no public exploit code.","fix":"Upgrade github.com/ory/hydra to 1.4.8 or later.","what":"CVE-2019-8400 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Feb 2019. 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-2019-8400 and fix it if it is affected.\n\nWhat it is: CVE-2019-8400 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Feb 2019. 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-2019-8400 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/ory/hydra (Go): affected all versions; no fix listed\n- github.com/ory/hydra (Go): affected all versions; fixed in 1.4.8\n- github.com/ory/hydra (Go): affected all versions; fixed in 1.4.8\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-2019-8400/ (Markdown: https://insights.sbomify.com/CVE-2019-8400/index.md)","id":"CVE-2019-8400","markdown":"https://insights.sbomify.com/CVE-2019-8400/index.md","name":"CVE-2019-8400","record":{"aliases":["GHSA-7v6r-w4r6-mhch","GO-2026-4861"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"OAuth2 server","requires_auth":"none","summary":"An attacker can execute arbitrary scripts in a victim's browser via the error_hint parameter in ORY Hydra's OAuth2 fallback error page.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"hydra","vendor":"ory"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"ORY Hydra before v1.0.0-rc.3+oryOS.9 has Reflected XSS via the oauth2/fallbacks/error error_hint parameter.","ecosystems":["Go"],"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":"Hydra has Reflected XSS via error_hint parameter","id":"CVE-2019-8400","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"xss","year":"2019"},"n_packages":3,"n_references":5,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2019-8401"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/ory/hydra","purl":"pkg:golang/github.com/ory/hydra","source":"GO-2026-4861"},{"ecosystem":"Go","fixed":["1.4.8"],"introduced":["0"],"last_affected":[],"package":"github.com/ory/hydra","purl":null,"source":"GHSA-7v6r-w4r6-mhch"},{"ecosystem":"Go","fixed":["1.4.8"],"introduced":["0"],"last_affected":[],"package":"github.com/ory/hydra","purl":"pkg:golang/github.com/ory/hydra","source":"GHSA-7v6r-w4r6-mhch"}],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2019-8398"},"products":["n/a"],"published":"2019-02-17","related":[{"cvss_score":7.2,"headline":"Ory Hydra has a SQL injection via forged pagination tokens","id":"CVE-2026-33504","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":5.8,"headline":"Disallow replay of `private_key_jwt` by blacklisting JTIs in Hydra","id":"CVE-2020-5300","kev_date_added":null,"published":"2020-04-06"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"An attacker can execute arbitrary scripts in a victim's browser via the error_hint parameter in ORY Hydra's OAuth2 fallback error page.","url":"https://insights.sbomify.com/CVE-2019-8400/"}