{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-88808 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-88808 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-88808 is a high-severity vulnerability in SUSE Rancher, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-88808 and fix it if it is affected.\n\nWhat it is: CVE-2026-88808 is a high-severity vulnerability in SUSE Rancher, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-88808 in the wild and no public exploit code.\n\nAffected product: SUSE Rancher. 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-2026-88808/ (Markdown: https://insights.sbomify.com/CVE-2026-88808/index.md)","id":"CVE-2026-88808","markdown":"https://insights.sbomify.com/CVE-2026-88808/index.md","name":"CVE-2026-88808","record":{"aliases":["GHSA-q9v4-358v-r8q5"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Rancher Fleet agent","requires_auth":"low_privilege","summary":"Fleet agent uses cluster-admin credentials for downstream writes, allowing attackers to modify resources across namespaces in multi-tenant environments.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"suse","cpe":[{"product":"rancher_fleet","vendor":"suse"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-250","name":"Execution with Unnecessary Privileges"}],"description":"A vulnerability has been identified within Rancher Manager where the Fleet agent wrote resources to downstream clusters using its own cluster-admin credentials instead of the ServiceAccount pinned to the deployment. It affects multi-tenancy environments where different tenants share the same downstream clusters, for example different privileged or untrusted teams inside the same organization. This could lead to overwritten configuration files.\n\nThis issue affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, and 0.14 before 0.14.11.","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":"Privilege escalation in Rancher","id":"CVE-2026-88808","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"X.Org Server XKB SetGeometry TextDoodad Double Free","id":"CVE-2026-88812"},"packages":[],"prev":{"headline":"libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow","id":"CVE-2026-88807"},"products":["Rancher"],"published":"2026-09-28","related":[{"cvss_score":9.9,"headline":"Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer","id":"CVE-2026-44935","kev_date_added":null,"published":"2026-07-02"},{"cvss_score":9.9,"headline":"Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering","id":"CVE-2026-41050","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":8.8,"headline":"Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent","id":"CVE-2026-44938","kev_date_added":null,"published":"2026-07-07"},{"cvss_score":8.3,"headline":"SUSE Rancher Fleet had an Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components","id":"CVE-2026-44937","kev_date_added":null,"published":"2026-07-06"},{"cvss_score":7.1,"headline":"Missing authorization in Rancher","id":"CVE-2026-93538","kev_date_added":null,"published":"2026-09-28"},{"cvss_score":6.5,"headline":"Path traversal in Fleet Helm valuesFiles allows disclosure of files outside the bundle directory","id":"CVE-2026-93537","kev_date_added":null,"published":"2026-09-28"}],"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":"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":"2026-09-29","vendors":["SUSE"]},"summary":"Fleet agent uses cluster-admin credentials for downstream writes, allowing attackers to modify resources across namespaces in multi-tenant environments.","url":"https://insights.sbomify.com/CVE-2026-88808/"}