{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13591 exists.","fix":"No fix has been published for CVE-2026-13591 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-13591 is a low-severity missing authorization vulnerability in DeepMyst Mysti, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-13591 and fix it if it is affected.\n\nWhat it is: CVE-2026-13591 is a low-severity missing authorization vulnerability in DeepMyst Mysti, published on 29 Jun 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-2026-13591 exists.\n\nAffected product: DeepMyst Mysti. 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-2026-13591/ (Markdown: https://insights.sbomify.com/CVE-2026-13591/index.md)","id":"CVE-2026-13591","markdown":"https://insights.sbomify.com/CVE-2026-13591/index.md","name":"CVE-2026-13591","record":{"aliases":["GHSA-4pqr-v6c3-x77j"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"DeepMyst Mysti","requires_auth":"low_privilege","summary":"Attackers can bypass authorization checks in the Contact Tracking module to access unauthorized conversation data.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"},{"id":"CWE-266","name":"Incorrect Privilege Assignment"}],"description":"A weakness has been identified in DeepMyst Mysti 0.4.0. Affected is the function _isTrackedConversation of the file src/managers/ChannelBridge.ts of the component Contact Tracking. This manipulation of the argument _channelType causes improper authorization. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is told to be difficult. The exploit has been made available to the public and could be used for attacks. Patch name: 9b4aff0f106db424aa45a35aa89dd0b8f2eb9a48. It is suggested to install a patch to address this issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"DeepMyst Mysti Contact Tracking ChannelBridge.ts _isTrackedConversation improper authorization","id":"CVE-2026-13591","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"liftoff-sr CIPster EtherNet IP Message append out-of-bounds write","id":"CVE-2026-13592"},"packages":[],"prev":{"headline":"seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow","id":"CVE-2026-13590"},"products":["Mysti"],"published":"2026-06-29","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-29","vendors":["DeepMyst"]},"summary":"Attackers can bypass authorization checks in the Contact Tracking module to access unauthorized conversation data.","url":"https://insights.sbomify.com/CVE-2026-13591/"}