{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-104658 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-104658 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-104658 is a high-severity vulnerability in Progressive Robot Ltd hMailServer, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-104658 and fix it if it is affected.\n\nWhat it is: CVE-2026-104658 is a high-severity vulnerability in Progressive Robot Ltd hMailServer, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-104658 in the wild and no public exploit code.\n\nAffected product: Progressive Robot Ltd hMailServer. 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-2026-104658/ (Markdown: https://insights.sbomify.com/CVE-2026-104658/index.md)","id":"CVE-2026-104658","markdown":"https://insights.sbomify.com/CVE-2026-104658/index.md","name":"CVE-2026-104658","record":{"aliases":["GHSA-xp25-6qr3-8c27"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"hMailServer mail server","requires_auth":"low_privilege","summary":"An attacker with service account access can escalate privileges to root via the Linux live-update helper in hMailServer.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitLab","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-807","name":"Reliance on Untrusted Inputs in a Security Decision"}],"description":"The Linux live-update apply helper (hmailserver-update) of Progressive Robot hMailServer 6.3.4 and 6.3.5 runs as root on a request file written by the unprivileged hmailserver service account, and took from that request the program used to verify an AppImage update's signature and the systemd unit to stop before reading the service account's files. An attacker who already runs code as the hmailserver service account, for example through another flaw in the mail server, can therefore have arbitrary code executed as root, on any Linux installation where the live update's path unit is active - the default for the project's .deb and .rpm packages - and on AppImage installations run under that unit.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Reliance on Untrusted Inputs in a Security Decision in hMailServer","id":"CVE-2026-104658","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Origin Validation Error in hMailServer","id":"CVE-2026-104659"},"packages":[],"prev":{"headline":"Envira Gallery \u003c 1.16.1 - Author+ Stored XSS via Gallery Crop Dimensions","id":"CVE-2026-104653"},"products":["hMailServer"],"published":"2026-10-08","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["Progressive Robot Ltd"]},"summary":"An attacker with service account access can escalate privileges to root via the Linux live-update helper in hMailServer.","url":"https://insights.sbomify.com/CVE-2026-104658/"}