{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2026-87886 in the wild since at least 16 Sep 2026.","fix":"No fix has been published for CVE-2026-87886 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 19 Sep 2026.","what":"CVE-2026-87886 is a high-severity vulnerability in Acronis Backup extension for Plesk, published on 17 Sep 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-2026-87886 and fix it if it is affected.\n\nWhat it is: CVE-2026-87886 is a high-severity vulnerability in Acronis Backup extension for Plesk, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2026-87886 in the wild since at least 16 Sep 2026.\n\nAffected product: Acronis Backup extension for Plesk. 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-2026-87886/ (Markdown: https://insights.sbomify.com/CVE-2026-87886/index.md)","id":"CVE-2026-87886","markdown":"https://insights.sbomify.com/CVE-2026-87886/index.md","name":"CVE-2026-87886","record":{"aliases":["GHSA-hrq3-qgq7-jm9x"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Backup plugin","requires_auth":"low_privilege","summary":"Local attackers can escalate privileges due to insecure file permissions in Acronis Backup plugins for cPanel, Plesk, and DirectAdmin.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Acronis","cpe":[{"product":"acronis_backup","vendor":"acronis"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-276","name":"Incorrect Default Permissions"}],"description":"Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Backup plugin for cPanel \u0026 WHM (Linux) before build 1.9.3.1021, Acronis Backup extension for Plesk (Linux) before build 1.8.11.638, Acronis Backup plugin for DirectAdmin (Linux) before build 1.2.3.238.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":null,"headline":"Acronis Backup Incorrect Default Permissions","id":"CVE-2026-87886","indexable":true,"kev":{"dateAdded":"2026-09-16","dueDate":"2026-09-19","knownRansomwareCampaignUse":"Unknown","product":"Backup","requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","vendorProject":"Acronis","vulnerabilityName":"Acronis Backup Incorrect Default Permissions Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"YayPricing \u003c 3.5.7 - Subscriber+ Stored XSS via save_page_data REST Route","id":"CVE-2026-87888"},"packages":[],"prev":{"headline":"Sensitive information disclosure due to missing SSL certificate verification affecting one component.","id":"CVE-2026-87880"},"products":["Acronis Backup extension for Plesk","Acronis Backup plugin for DirectAdmin","Acronis Backup plugin for cPanel \u0026 WHM"],"published":"2026-09-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-18","vendors":["Acronis"]},"summary":"Local attackers can escalate privileges due to insecure file permissions in Acronis Backup plugins for cPanel, Plesk, and DirectAdmin.","url":"https://insights.sbomify.com/CVE-2026-87886/"}