{"answers":{"affected":"3 open source packages ship an affected version, including oban_web.","exploited":"There is no known exploitation of CVE-2026-48593 in the wild and no public exploit code.","fix":"Upgrade oban_web to 2.12.5 or later.","what":"CVE-2026-48593 is a medium-severity denial of service vulnerability in oban-bg oban_web, published on 26 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-48593 and fix it if it is affected.\n\nWhat it is: CVE-2026-48593 is a medium-severity denial of service vulnerability in oban-bg oban_web, published on 26 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-48593 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- oban_web (Hex): affected from 2.12.0; fixed in 2.12.5\n- oban_web (Hex): affected from 2.12.0; fixed in 2.12.5\n- oban_web (Hex): affected from 2.12.0; fixed in 2.12.5\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-2026-48593/ (Markdown: https://insights.sbomify.com/CVE-2026-48593/index.md)","id":"CVE-2026-48593","markdown":"https://insights.sbomify.com/CVE-2026-48593/index.md","name":"CVE-2026-48593","record":{"aliases":["EEF-CVE-2026-48593","GHSA-6xh2-93p9-vqh4"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Elixir Oban Web","requires_auth":"low_privilege","summary":"An attacker can cause memory exhaustion and crash the server by submitting malicious cron expressions to the Oban Web dashboard.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Uncontrolled Resource Consumption vulnerability in oban-bg oban_web ('Elixir.Oban.Web.CronExpr' modules) allows memory exhaustion via unbounded cron range expansion.\n\nAn attacker with access to schedule cron jobs can submit a malicious cron expression such as \"0 0 1-100000000 * *\". When a user with dashboard access views the cron job list, 'Elixir.Oban.Web.CronExpr':describe/1 is called to render the expression. parse_range/1 parses both range endpoints via Integer.parse/1 with no bounds check, and the downstream helpers expand_dom_parts/1 and expand_dow_parts/1 materialise the range eagerly via Enum.to_list/1, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper extract_dom_values already validates range bounds, but the expansion helpers do not.\n\nThis issue affects oban_web: from 2.12.0 before 2.12.5.","ecosystems":["Hex"],"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":"Unbounded range expansion in cron describe causes memory exhaustion in oban_web","id":"CVE-2026-48593","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression","id":"CVE-2026-48594"},"packages":[{"ecosystem":"Hex","fixed":["2.12.5"],"introduced":["2.12.0"],"last_affected":[],"package":"oban_web","purl":"pkg:hex/oban_web","source":"EEF-CVE-2026-48593"},{"ecosystem":"Hex","fixed":["2.12.5"],"introduced":["2.12.0"],"last_affected":[],"package":"oban_web","purl":null,"source":"GHSA-6xh2-93p9-vqh4"},{"ecosystem":"Hex","fixed":["2.12.5"],"introduced":["2.12.0"],"last_affected":[],"package":"oban_web","purl":"pkg:hex/oban_web","source":"GHSA-6xh2-93p9-vqh4"}],"prev":{"headline":"Missing authorization check on save-job event handler in oban_web","id":"CVE-2026-48592"},"products":["oban_web"],"published":"2026-05-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-05-27","vendors":["oban-bg"]},"summary":"An attacker can cause memory exhaustion and crash the server by submitting malicious cron expressions to the Oban Web dashboard.","url":"https://insights.sbomify.com/CVE-2026-48593/"}