{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-26034 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-26034 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-26034 is a medium-severity vulnerability in Zammad Zammad, published on 28 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-26034 and fix it if it is affected.\n\nWhat it is: CVE-2020-26034 is a medium-severity vulnerability in Zammad Zammad, published on 28 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-26034 in the wild and no public exploit code.\n\nAffected product: Zammad Zammad. 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-2020-26034/ (Markdown: https://insights.sbomify.com/CVE-2020-26034/index.md)","id":"CVE-2020-26034","markdown":"https://insights.sbomify.com/CVE-2020-26034/index.md","name":"CVE-2020-26034","record":{"aliases":["GHSA-r5vx-622x-4rx2"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Zammad helpdesk","requires_auth":"low_privilege","summary":"An anonymous attacker can enumerate valid user email addresses by observing different responses from the user creation feature.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"zammad","vendor":"zammad"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"An account-enumeration issue was discovered in Zammad before 3.4.1. The Create User functionality is implemented in a way that would enable an anonymous user to guess valid user email addresses. The application responds differently depending on whether the input supplied was recognized as associated with a valid user.","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":"Information disclosure in n/a","id":"CVE-2020-26034","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"zammad:zammad","products":["zammad:zammad"],"type":"information_disclosure","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-26035"},"packages":[],"prev":{"headline":"An issue was discovered in Zammad before 3.4.1.","id":"CVE-2020-26033"},"products":["n/a"],"published":"2020-12-28","related":[{"cvss_score":8.7,"headline":"Zammad GmbH Zammad Session Fixation","id":"CVE-2026-102489","kev_date_added":"2026-10-02","published":"2026-09-30"},{"cvss_score":8.5,"headline":"Zammad GmbH Zammad Improper Privilege Management","id":"CVE-2026-102490","kev_date_added":"2026-10-02","published":"2026-09-30"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2022-48021","kev_date_added":null,"published":"2023-02-03"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2022-35490","kev_date_added":null,"published":"2022-08-08"},{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2021-42090","kev_date_added":null,"published":"2021-10-07"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-42094","kev_date_added":null,"published":"2021-10-07"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2020-26030","kev_date_added":null,"published":"2020-12-28"}],"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":"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 anonymous attacker can enumerate valid user email addresses by observing different responses from the user creation feature.","url":"https://insights.sbomify.com/CVE-2020-26034/"}