{"answers":{"affected":"2 open source packages ship an affected version, including @oneuptime/common. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28787 exists.","fix":"No fix has been published for CVE-2026-28787 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-28787 is a high-severity authentication bypass vulnerability in oneuptime, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-28787 and fix it if it is affected.\n\nWhat it is: CVE-2026-28787 is a high-severity authentication bypass vulnerability in oneuptime, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28787 exists.\n\nAffected packages and fixed versions:\n- @oneuptime/common (npm): affected all versions up to 10.0.11; no fix listed\n- @oneuptime/common (npm): affected all versions up to 10.0.11; 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-2026-28787/ (Markdown: https://insights.sbomify.com/CVE-2026-28787/index.md)","id":"CVE-2026-28787","markdown":"https://insights.sbomify.com/CVE-2026-28787/index.md","name":"CVE-2026-28787","record":{"aliases":["GHSA-gjjc-pcwp-c74m"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["security_bypass","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"OneUptime monitoring platform","requires_auth":"low_privilege","summary":"Attackers can bypass WebAuthn 2FA by replaying captured assertions because the server fails to validate the challenge against a stored value.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"oneuptime","vendor":"hackerbay"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-294","name":"Authentication Bypass by Capture-replay"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"OneUptime is a solution for monitoring and managing online services. In version 10.0.11 and prior, the WebAuthn authentication implementation does not store the challenge on the server side. Instead, the challenge is returned to the client and accepted back from the client request body during verification. This violates the WebAuthn specification (W3C Web Authentication Level 2, §13.4.3) and allows an attacker who has obtained a valid WebAuthn assertion (e.g., via XSS, MitM, or log exposure) to replay it indefinitely, completely bypassing the second-factor authentication. No known patches are available.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"OneUptime has WebAuthn 2FA bypass: server accepts client-supplied challenge instead of server-stored value, allowing credential replay","id":"CVE-2026-28787","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite","id":"CVE-2026-28788"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["10.0.11"],"package":"@oneuptime/common","purl":null,"source":"GHSA-gjjc-pcwp-c74m"},{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["10.0.11"],"package":"@oneuptime/common","purl":"pkg:npm/%40oneuptime/common","source":"GHSA-gjjc-pcwp-c74m"}],"prev":{"headline":"Open WebUI vulnerable to Path Traversal in `POST /api/v1/audio/transcriptions`","id":"CVE-2026-28786"},"products":["oneuptime"],"published":"2026-03-06","related":[{"cvss_score":10,"headline":"Code injection in oneuptime","id":"CVE-2026-33396","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":10,"headline":"OneUptime ClickHouse SQL Injection via Aggregate Query Parameters","id":"CVE-2026-32306","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":10,"headline":"OneUptime has authorization bypass via client‑controlled is-multi-tenant-query header","id":"CVE-2026-30956","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":10,"headline":"OneUptime Synthetic Monitor RCE via exposed Playwright browser object","id":"CVE-2026-30957","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":10,"headline":"OneUptime Affected by Unsandboxed Code Execution in Probe Allows Any Project Member to Achieve RCE","id":"CVE-2026-30887","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":10,"headline":"OneUptime Synthetic Monitor RCE via exposed Playwright browser object","id":"CVE-2026-30921","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":10,"headline":"OneUptime: OS Command Injection in Probe NetworkPathMonitor via unsanitized destination in traceroute exec()","id":"CVE-2026-27728","kev_date_added":null,"published":"2026-02-25"}],"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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-09","vendors":["OneUptime"]},"summary":"Attackers can bypass WebAuthn 2FA by replaying captured assertions because the server fails to validate the challenge against a stored value.","url":"https://insights.sbomify.com/CVE-2026-28787/"}