{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56136 exists.","fix":"No fix has been published for CVE-2024-56136 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-56136 is a medium-severity vulnerability in zulip, published on 16 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-56136 and fix it if it is affected.\n\nWhat it is: CVE-2024-56136 is a medium-severity vulnerability in zulip, published on 16 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56136 exists.\n\nAffected product: zulip. 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-2024-56136/ (Markdown: https://insights.sbomify.com/CVE-2024-56136/index.md)","id":"CVE-2024-56136","markdown":"https://insights.sbomify.com/CVE-2024-56136/index.md","name":"CVE-2024-56136","record":{"aliases":["GHSA-5xg8-xhfj-4hm6"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Zulip chat server","requires_auth":"none","summary":"Unauthenticated attackers can determine if an email address is registered on multi-organization Zulip servers, leaking user account existence.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"zulip_server","vendor":"zulip"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Zulip server provides an open-source team chat that helps teams stay productive and focused. Zulip Server 7.0 and above are vulnerable to an information disclose attack, where, if a Zulip server is hosting multiple organizations, an unauthenticated user can make a request and determine if an email address is in use by a user. Zulip Server 9.4 resolves the issue, as does the `main` branch of Zulip Server. Users are advised to upgrade. There are no known workarounds for this issue.","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":"/api/v1/jwt/fetch_api_key endpoint can leak if an email address has an account in Zulip server","id":"CVE-2024-56136","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2024"},"n_packages":0,"n_references":2,"next":{"headline":"MaxKB RCE vulnerability in function library","id":"CVE-2024-56137"},"packages":[],"prev":{"headline":"Improper Input Validation vulnerability of Authenticated User in Progress LoadMaster allows : OS Command Injection.","id":"CVE-2024-56135"},"products":["zulip"],"published":"2025-01-16","related":[{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2019-18933","kev_date_added":null,"published":"2019-11-21"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2020-15070","kev_date_added":null,"published":"2020-08-21"},{"cvss_score":8.8,"headline":"Missing authorization in Zulip Server","id":"CVE-2017-0910","kev_date_added":null,"published":"2017-11-27"},{"cvss_score":8.2,"headline":"Zulip Authentication Backend Configuration Bypass","id":"CVE-2025-31478","kev_date_added":null,"published":"2025-04-16"},{"cvss_score":8.2,"headline":"Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip","id":"CVE-2023-33186","kev_date_added":null,"published":"2023-05-30"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-36612","kev_date_added":null,"published":"2024-11-29"},{"cvss_score":7.5,"headline":"Privilege escalation in n/a","id":"CVE-2020-14215","kev_date_added":null,"published":"2020-08-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-06","vendors":["zulip"]},"summary":"Unauthenticated attackers can determine if an email address is registered on multi-organization Zulip servers, leaking user account existence.","url":"https://insights.sbomify.com/CVE-2024-56136/"}