{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-100871 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-100871 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-100871 is a high-severity authentication bypass vulnerability in Sylius, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-100871 and fix it if it is affected.\n\nWhat it is: CVE-2026-100871 is a high-severity authentication bypass vulnerability in Sylius, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-100871 in the wild and no public exploit code.\n\nAffected product: Sylius. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-100871/ (Markdown: https://insights.sbomify.com/CVE-2026-100871/index.md)","id":"CVE-2026-100871","markdown":"https://insights.sbomify.com/CVE-2026-100871/index.md","name":"CVE-2026-100871","record":{"aliases":["GHSA-f6mx-qxjc-55xf","GHSA-mxrg-842r-h599"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Sylius e-commerce platform","requires_auth":"low_privilege","summary":"Attackers can gain full administrative access by exploiting JWT audience confusion to impersonate admins via shop customer registration.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API endpoints. Attackers can register a shop customer account using an administrator's email address and obtain a token that the Admin API resolves to that administrator, granting full administrative access.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authentication","id":"CVE-2026-100871","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Sylius 2.x before 2.1.16 and 2.2.9 Payment Amount Overwrite","id":"CVE-2026-100872"},"packages":[],"prev":{"headline":"Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 Admin Password Reset Poisoning via Host Header","id":"CVE-2026-100870"},"products":["Sylius"],"published":"2026-09-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-10-06","vendors":["Sylius"]},"summary":"Attackers can gain full administrative access by exploiting JWT audience confusion to impersonate admins via shop customer registration.","url":"https://insights.sbomify.com/CVE-2026-100871/"}