{"answers":{"affected":"8 open source packages ship an affected version, including @payloadcms/storage-azure, @payloadcms/storage-gcs and @payloadcms/storage-r2. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34750 in the wild and no public exploit code.","fix":"Upgrade @payloadcms/storage-azure to 3.78.0 or later.","what":"CVE-2026-34750 is a medium-severity path traversal vulnerability in payloadcms payload, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-34750 and fix it if it is affected.\n\nWhat it is: CVE-2026-34750 is a medium-severity path traversal vulnerability in payloadcms payload, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-34750 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @payloadcms/storage-azure (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-azure (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-gcs (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-gcs (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-r2 (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-r2 (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-s3 (npm): affected all versions; fixed in 3.78.0\n- @payloadcms/storage-s3 (npm): affected all versions; fixed in 3.78.0\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-2026-34750/ (Markdown: https://insights.sbomify.com/CVE-2026-34750/index.md)","id":"CVE-2026-34750","markdown":"https://insights.sbomify.com/CVE-2026-34750/index.md","name":"CVE-2026-34750","record":{"aliases":["GHSA-frq9-7j6g-v74x"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify","other"],"network_reachable":"yes","non_default_config":false,"product_category":"Payload CMS storage plugin","requires_auth":"low_privilege","summary":"Attackers can escape intended storage locations via crafted filenames in client-upload signed-URL endpoints of Payload CMS storage plugins.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"payload","vendor":"payloadcms"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Payload is a free and open source headless content management system. Prior to version 3.78.0 in @payloadcms/storage-azure, @payloadcms/storage-gcs, @payloadcms/storage-r2, and @payloadcms/storage-s3, the client-upload signed-URL endpoints for S3, GCS, Azure, and R2 did not properly sanitize filenames. An attacker could craft filenames to escape the intended storage location. This issue has been patched in version 3.78.0 for @payloadcms/storage-azure, @payloadcms/storage-gcs, @payloadcms/storage-r2, and @payloadcms/storage-s3.","ecosystems":["npm"],"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":"Payload has Insufficient Filename Validation in Client-Upload Signed-URL Endpoints","id":"CVE-2026-34750","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":8,"n_references":1,"next":{"headline":"Payload has Unvalidated Input in Password Recovery Endpoints","id":"CVE-2026-34751"},"packages":[{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-azure","purl":null,"source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-azure","purl":"pkg:npm/%40payloadcms/storage-azure","source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-gcs","purl":null,"source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-gcs","purl":"pkg:npm/%40payloadcms/storage-gcs","source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-r2","purl":null,"source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-r2","purl":"pkg:npm/%40payloadcms/storage-r2","source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-s3","purl":null,"source":"GHSA-frq9-7j6g-v74x"},{"ecosystem":"npm","fixed":["3.78.0"],"introduced":["0"],"last_affected":[],"package":"@payloadcms/storage-s3","purl":"pkg:npm/%40payloadcms/storage-s3","source":"GHSA-frq9-7j6g-v74x"}],"prev":{"headline":"Payload has a CSRF Protection Bypass in Authentication Flow","id":"CVE-2026-34749"},"products":["payload"],"published":"2026-04-01","related":[{"cvss_score":10,"headline":"Payload: RCE in Payload Form Builder","id":"CVE-2026-105857","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":9.8,"headline":"Payload: Unauthorized update to collection documents","id":"CVE-2026-105859","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":9.8,"headline":"Payload has an SQL Injection in JSON/RichText Queries on PostgreSQL/SQLite Adapters","id":"CVE-2026-25544","kev_date_added":null,"published":"2026-02-06"},{"cvss_score":9.8,"headline":"Unrestricted Upload of File with Dangerous Type in Payload","id":"CVE-2022-27952","kev_date_added":null,"published":"2022-04-12"},{"cvss_score":9.3,"headline":"Payload: Field access control bypass on auth collections","id":"CVE-2026-105851","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":9.2,"headline":"Payload authentication token field handling issue","id":"CVE-2026-105863","kev_date_added":null,"published":"2026-10-06"},{"cvss_score":9.1,"headline":"Payload has Unvalidated Input in Password Recovery Endpoints","id":"CVE-2026-34751","kev_date_added":null,"published":"2026-04-01"}],"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":"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-02","vendors":["payloadcms"]},"summary":"Attackers can escape intended storage locations via crafted filenames in client-upload signed-URL endpoints of Payload CMS storage plugins.","url":"https://insights.sbomify.com/CVE-2026-34750/"}