{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-5269 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-5269 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-5269 is a critical vulnerability in CIENA MCP, published on 14 Jul 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-2026-5269 and fix it if it is affected.\n\nWhat it is: CVE-2026-5269 is a critical vulnerability in CIENA MCP, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-5269 in the wild and no public exploit code.\n\nAffected product: CIENA MCP. 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-2026-5269/ (Markdown: https://insights.sbomify.com/CVE-2026-5269/index.md)","id":"CVE-2026-5269","markdown":"https://insights.sbomify.com/CVE-2026-5269/index.md","name":"CVE-2026-5269","record":{"aliases":["GHSA-6jrj-gphg-p8mj"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Ciena Navigator NCS","requires_auth":"none","summary":"Hidden system accounts with predictable default passwords in Ciena Navigator NCS and MCP allow attackers to potentially escalate privileges when combined with other weaknesses.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Ciena","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-1393","name":"Use of Default Password"}],"description":"In Ciena's Navigator Network Control Suite (NCS) and Manage Control Plan (MCP), there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker could combine an attack using one of these accounts with other potential weaknesses to launch a more significant attack, possibly leading to escalation of privilege on the system.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Navigator NCS and MCP System Accounts with Default Passwords","id":"CVE-2026-5269","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Authentication Bypass in Navigator and Blue Planet Products","id":"CVE-2026-5270"},"packages":[],"prev":{"headline":"SFTP Server Authentication Weakness","id":"CVE-2026-5268"},"products":["MCP","Navigator NCS","Planner Plus OnPrem"],"published":"2026-07-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["CIENA"]},"summary":"Hidden system accounts with predictable default passwords in Ciena Navigator NCS and MCP allow attackers to potentially escalate privileges when combined with other weaknesses.","url":"https://insights.sbomify.com/CVE-2026-5269/"}