{"answers":{"affected":"6 open source packages ship an affected version, including github.com/0xJacky/Nginx-UI and github.com/uozi-tech/cosy. It affects 2 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33028 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-33028 is a high-severity vulnerability in 0xJacky nginx-ui, published on 30 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-33028 and fix it if it is affected.\n\nWhat it is: CVE-2026-33028 is a high-severity vulnerability in 0xJacky nginx-ui, published on 30 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33028 exists.\n\nAffected packages and fixed versions:\n- github.com/0xJacky/Nginx-UI (Go): affected all versions; no fix listed\n- github.com/0xJacky/Nginx-UI (Go): affected all versions up to 1.99; no fix listed\n- github.com/0xJacky/Nginx-UI (Go): affected all versions up to 1.99; no fix listed\n- github.com/uozi-tech/cosy (Go): affected all versions; fixed in 1.30.1\n- github.com/uozi-tech/cosy (Go): affected all versions; fixed in 1.30.1\n- github.com/uozi-tech/cosy (Go): affected all versions; fixed in 1.30.1\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-2026-33028/ (Markdown: https://insights.sbomify.com/CVE-2026-33028/index.md)","id":"CVE-2026-33028","markdown":"https://insights.sbomify.com/CVE-2026-33028/index.md","name":"CVE-2026-33028","record":{"aliases":["GHSA-m468-xcm6-fxg4","GO-2026-4906"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Nginx web UI","requires_auth":"high_privilege","summary":"Concurrent requests corrupt the configuration file, causing persistent denial of service and potential remote code execution in Nginx UI.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"nginx_ui","vendor":"nginxui"},{"product":"cosy","vendor":"uozi"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui application is vulnerable to a Race Condition. Due to the complete absence of synchronization mechanisms (Mutex) and non-atomic file writes, concurrent requests lead to the severe corruption of the primary configuration file (app.ini). This vulnerability results in a persistent Denial of Service (DoS) and introduces a non-deterministic path for Remote Code Execution (RCE) through configuration cross-contamination. This issue has been patched in version 2.3.4.","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":"Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse","id":"CVE-2026-33028","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":6,"n_references":2,"next":{"headline":"Nginx UI: DoS via Negative Integer Input in Logrotate Interval","id":"CVE-2026-33029"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/0xJacky/Nginx-UI","purl":"pkg:golang/github.com/0xJacky/Nginx-UI","source":"GO-2026-4906"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.99"],"package":"github.com/0xJacky/Nginx-UI","purl":null,"source":"GHSA-m468-xcm6-fxg4"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.99"],"package":"github.com/0xJacky/Nginx-UI","purl":"pkg:golang/github.com/0xJacky/Nginx-UI","source":"GHSA-m468-xcm6-fxg4"},{"ecosystem":"Go","fixed":["1.30.1"],"introduced":["0"],"last_affected":[],"package":"github.com/uozi-tech/cosy","purl":null,"source":"GHSA-m468-xcm6-fxg4"},{"ecosystem":"Go","fixed":["1.30.1"],"introduced":["0"],"last_affected":[],"package":"github.com/uozi-tech/cosy","purl":"pkg:golang/github.com/uozi-tech/cosy","source":"GHSA-m468-xcm6-fxg4"},{"ecosystem":"Go","fixed":["1.30.1"],"introduced":["0"],"last_affected":[],"package":"github.com/uozi-tech/cosy","purl":"pkg:golang/github.com/uozi-tech/cosy","source":"GO-2026-4906"}],"prev":{"headline":"Nginx UI: Improper Path Validation Allows Recursive Deletion of the Nginx Configuration Directory","id":"CVE-2026-33027"},"products":["nginx-ui"],"published":"2026-03-30","related":[{"cvss_score":9.8,"headline":"Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover","id":"CVE-2026-33032","kev_date_added":null,"published":"2026-03-30"},{"cvss_score":9.8,"headline":"Nginx UI: Unauthenticated Backup Download with Encryption Key Disclosure","id":"CVE-2026-27944","kev_date_added":null,"published":"2026-03-05"},{"cvss_score":9.8,"headline":"Nginx-UI arbitrary file write through the Import Certificate feature","id":"CVE-2024-23827","kev_date_added":null,"published":"2024-01-29"},{"cvss_score":9.4,"headline":"Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite","id":"CVE-2026-107806","kev_date_added":null,"published":"2026-10-09"},{"cvss_score":9.4,"headline":"nginx-ui Backup Restore Allows Tampering with Encrypted Backups","id":"CVE-2026-33026","kev_date_added":null,"published":"2026-03-30"},{"cvss_score":9,"headline":"Unauthenticated Remote Code Execution via Backup Restore in nginx-ui","id":"CVE-2026-42238","kev_date_added":null,"published":"2026-05-04"},{"cvss_score":8.9,"headline":"Unchecked logrotate settings lead to arbitrary command execution","id":"CVE-2024-49368","kev_date_added":null,"published":"2024-10-21"}],"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":"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-30","vendors":["0xJacky"]},"summary":"Concurrent requests corrupt the configuration file, causing persistent denial of service and potential remote code execution in Nginx UI.","url":"https://insights.sbomify.com/CVE-2026-33028/"}