{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34745 exists.","fix":"No fix has been published for CVE-2026-34745 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-34745 is a critical path traversal vulnerability in ShaneIsrael fireshare, published on 2 Apr 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-2026-34745 and fix it if it is affected.\n\nWhat it is: CVE-2026-34745 is a critical path traversal vulnerability in ShaneIsrael fireshare, published on 2 Apr 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-2026-34745 exists.\n\nAffected product: ShaneIsrael fireshare. 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-2026-34745/ (Markdown: https://insights.sbomify.com/CVE-2026-34745/index.md)","id":"CVE-2026-34745","markdown":"https://insights.sbomify.com/CVE-2026-34745/index.md","name":"CVE-2026-34745","record":{"aliases":["GHSA-fvvp-rj8g-c7gc"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Fireshare media sharing","requires_auth":"none","summary":"Unauthenticated attackers can write arbitrary files to the server via path traversal in the public upload endpoint, potentially leading to code execution.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"fireshare","vendor":"shaneisrael"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated /api/uploadChunked endpoint but was not applied to the unauthenticated /api/uploadChunked/public endpoint in the same file (app/server/fireshare/api.py). An unauthenticated attacker can exploit the checkSum parameter to write arbitrary files with attacker-controlled content to any writable path on the server filesystem. This issue has been patched in version 1.5.3.","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":"Unauthenticated Path Traversal Arbitrary File Write in /api/uploadChunked/public","id":"CVE-2026-34745","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Payload has Authenticated SSRF via Upload Functionality","id":"CVE-2026-34746"},"packages":[],"prev":{"headline":"MantisBT authorization bypass allows continued access to self-uploaded attachments on private issues","id":"CVE-2026-34744"},"products":["fireshare"],"published":"2026-04-02","related":[{"cvss_score":9.8,"headline":"Fireshare Public Uploads feature is vulnerable to OS Command Injection (RCE)","id":"CVE-2025-67728","kev_date_added":null,"published":"2025-12-12"},{"cvss_score":7.1,"headline":"Fireshare has Path Traversal Arbitrary File Write in `/api/uploadChunked`","id":"CVE-2026-33645","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":6.5,"headline":"SQL injection in n/a","id":"CVE-2025-55476","kev_date_added":null,"published":"2025-09-02"}],"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":"2026-04-02","vendors":["ShaneIsrael"]},"summary":"Unauthenticated attackers can write arbitrary files to the server via path traversal in the public upload endpoint, potentially leading to code execution.","url":"https://insights.sbomify.com/CVE-2026-34745/"}