{"answers":{"affected":"1 open source package ship an affected version, including pycti. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27960 exists.","fix":"Upgrade pycti to 6.9.13 or later.","what":"CVE-2026-27960 is a critical authentication bypass vulnerability in OpenCTI-Platform opencti, published on 5 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-2026-27960 and fix it if it is affected.\n\nWhat it is: CVE-2026-27960 is a critical authentication bypass vulnerability in OpenCTI-Platform opencti, published on 5 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-2026-27960 exists.\n\nAffected packages and fixed versions:\n- pycti (PyPI): affected from 6.9.0; fixed in 6.9.13\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-2026-27960/ (Markdown: https://insights.sbomify.com/CVE-2026-27960/index.md)","id":"CVE-2026-27960","markdown":"https://insights.sbomify.com/CVE-2026-27960/index.md","name":"CVE-2026-27960","record":{"aliases":["GHSA-6vvv-vmfr-xhrx","PYSEC-2026-119"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Threat Intelligence Platform","requires_auth":"none","summary":"Unauthenticated attackers can escalate privileges and access the API as any user, including the default admin, in OpenCTI.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"opencti","vendor":"citeum"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploited by unauthenticated attackers to query the API as any existing user, including the default admin account. This issue has been fixed in version 6.9.13. As a workaround, the default admin can be disabled using the `APP__ADMIN__EXTERNALLY_MANAGED` configuration.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":"2026-05-04","github_poc":0,"max_poc_stars":null,"metasploit":1,"nuclei":1,"refs":[{"date":"2026-05-04","kind":"metasploit","ref":"exploit/linux/http/opencti_notifier_rce","stars":null,"title":"OpenCTI Authentication Bypass and Notifier EJS Remote Code Execution"},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-27960.yaml","stars":null,"title":"OpenCTI \u003c 6.9.13 - Authentication Bypass via User Impersonation"}],"tier":"weaponised"},"has_fix":true,"headline":"OpenCTI privilege escalation and unauthenticated access via default admin account","id":"CVE-2026-27960","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":1,"n_references":1,"next":{"headline":"Agenta's Server-Side Template Injection (SSTI) via custom evaluator Jinja2 templates allows RCE","id":"CVE-2026-27961"},"packages":[{"ecosystem":"PyPI","fixed":["6.9.13"],"introduced":["6.9.0"],"last_affected":[],"package":"pycti","purl":"pkg:pypi/pycti","source":"PYSEC-2026-119"}],"prev":{"headline":"Koa has Host Header Injection via `ctx.hostname`","id":"CVE-2026-27959"},"products":["opencti"],"published":"2026-05-05","related":[{"cvss_score":9.1,"headline":"OpenCTI affected by RCE via notifier template","id":"CVE-2026-39980","kev_date_added":null,"published":"2026-04-09"},{"cvss_score":9.1,"headline":"OpenCTI has remote code execution and sensitive secrets exposed through web hook","id":"CVE-2025-24977","kev_date_added":null,"published":"2025-05-05"},{"cvss_score":8.3,"headline":"OpenCTI Authenticated Privilege Escalation","id":"CVE-2024-26139","kev_date_added":null,"published":"2024-05-23"},{"cvss_score":8.1,"headline":"OpenCTI's lack of Rate Limit lead to OTP brute forcing","id":"CVE-2024-45404","kev_date_added":null,"published":"2024-12-11"},{"cvss_score":7.7,"headline":"OpenCTI has a Semi-Blind SSRF via Unvalidated External URL in Data Ingestion Feature","id":"CVE-2026-21887","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":7.6,"headline":"OpenCTI vulnerable to Denial of Service through web hook","id":"CVE-2025-26621","kev_date_added":null,"published":"2025-05-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-06","vendors":["OpenCTI-Platform"]},"summary":"Unauthenticated attackers can escalate privileges and access the API as any user, including the default admin, in OpenCTI.","url":"https://insights.sbomify.com/CVE-2026-27960/"}