{"answers":{"affected":"4 open source packages ship an affected version, including github.com/hahwul/dalfox/v2 and github.com/hahwul/dalfox.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45089 exists.","fix":"Upgrade github.com/hahwul/dalfox/v2 to 2.13.0 or later.","what":"CVE-2026-45089 is a high-severity path traversal vulnerability in hahwul dalfox, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-45089 and fix it if it is affected.\n\nWhat it is: CVE-2026-45089 is a high-severity path traversal vulnerability in hahwul dalfox, published on 27 May 2026. 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-2026-45089 exists.\n\nAffected packages and fixed versions:\n- github.com/hahwul/dalfox/v2 (Go): affected all versions; fixed in 2.13.0\n- github.com/hahwul/dalfox/v2 (Go): affected all versions; fixed in 2.13.0\n- github.com/hahwul/dalfox/v2 (Go): affected all versions; fixed in 2.13.0\n- github.com/hahwul/dalfox (Go): affected all versions; no fix listed\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-2026-45089/ (Markdown: https://insights.sbomify.com/CVE-2026-45089/index.md)","id":"CVE-2026-45089","markdown":"https://insights.sbomify.com/CVE-2026-45089/index.md","name":"CVE-2026-45089","record":{"aliases":["GHSA-8hf9-3q64-q2qf","GO-2026-5257"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["data_modify","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"XSS scanner tool","requires_auth":"none","summary":"Unauthenticated attackers can create or append to arbitrary files on the host via the Dalfox server mode output option, potentially leading to code execution.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-73","name":"External Control of File Name or Path"},{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"},{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Dalfox is a powerful open-source XSS scanner and utility focused on automation. Prior to 2.13.0, when dalfox is run in REST API server mode, the output, output-all, and debug fields in model.Options are JSON-tagged and deserialized directly from the attacker's request body, then propagated unchanged through dalfox.Initialize into the scan engine's logging path. The logger opens the attacker-supplied path with os.O_APPEND|os.O_CREATE|os.O_WRONLY and writes scan log lines to it. Critically, this file write block lives outside the IsLibrary guard in DalLog, so it executes even in server/library mode where file output was never intended to operate. Because no API key is required in the default configuration, an unauthenticated network caller can create or append to any file writable by the dalfox process on the host filesystem. This vulnerability is fixed in 2.13.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Dalfox: Unauthenticated Arbitrary File Create/Append via `output` Option in Dalfox Server Mode","id":"CVE-2026-45089","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"Dalfox: Unauthenticated Remote DoS via Closed-Channel Write in `ParameterAnalysis` (server mode)","id":"CVE-2026-45090"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/hahwul/dalfox","purl":"pkg:golang/github.com/hahwul/dalfox","source":"GO-2026-5257"},{"ecosystem":"Go","fixed":["2.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/hahwul/dalfox/v2","purl":null,"source":"GHSA-8hf9-3q64-q2qf"},{"ecosystem":"Go","fixed":["2.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/hahwul/dalfox/v2","purl":"pkg:golang/github.com/hahwul/dalfox/v2","source":"GHSA-8hf9-3q64-q2qf"},{"ecosystem":"Go","fixed":["2.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/hahwul/dalfox/v2","purl":"pkg:golang/github.com/hahwul/dalfox/v2","source":"GO-2026-5257"}],"prev":{"headline":"Dalfox Server Mode has an Unauthenticated Arbitrary File Read with Out-of-Band Exfiltration via `custom-payload-file`","id":"CVE-2026-45088"},"products":["dalfox"],"published":"2026-05-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2026-05-27","vendors":["hahwul"]},"summary":"Unauthenticated attackers can create or append to arbitrary files on the host via the Dalfox server mode output option, potentially leading to code execution.","url":"https://insights.sbomify.com/CVE-2026-45089/"}