{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56306 exists.","fix":"No fix has been published for CVE-2026-56306 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-56306 is a medium-severity authentication bypass vulnerability in Capgo, published on 22 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-56306 and fix it if it is affected.\n\nWhat it is: CVE-2026-56306 is a medium-severity authentication bypass vulnerability in Capgo, published on 22 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56306 exists.\n\nAffected product: Capgo. 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-2026-56306/ (Markdown: https://insights.sbomify.com/CVE-2026-56306/index.md)","id":"CVE-2026-56306","markdown":"https://insights.sbomify.com/CVE-2026-56306/index.md","name":"CVE-2026-56306","record":{"aliases":["GHSA-42vv-8j94-24wj"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Capgo update server","requires_auth":"low_privilege","summary":"Attackers can bypass subkey restrictions by manipulating the x-limited-key-id header, allowing execution of requests with main API key privileges.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header to disable limited key scoping and execute requests using the main API key context instead of restricted subkey permissions.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Capgo - Subkey Enforcement Bypass via x-limited-key-id Header Parsing","id":"CVE-2026-56306","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Cap-go - Broken Cursor Pagination in /private/devices Endpoint","id":"CVE-2026-56307"},"packages":[],"prev":{"headline":"Capgo - Authentication Bypass in Password Change via Missing Current Password Validation","id":"CVE-2026-56305"},"products":["Capgo"],"published":"2026-06-22","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-23","vendors":["Capgo"]},"summary":"Attackers can bypass subkey restrictions by manipulating the x-limited-key-id header, allowing execution of requests with main API key privileges.","url":"https://insights.sbomify.com/CVE-2026-56306/"}