{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-93539 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-93539 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-93539 is a medium-severity missing authorization 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-2026-93539 and fix it if it is affected.\n\nWhat it is: CVE-2026-93539 is a medium-severity missing authorization 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-2026-93539 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-2026-93539/ (Markdown: https://insights.sbomify.com/CVE-2026-93539/index.md)","id":"CVE-2026-93539","markdown":"https://insights.sbomify.com/CVE-2026-93539/index.md","name":"CVE-2026-93539","record":{"aliases":["GHSA-8vfv-33cg-g75q"],"analysis":{"component_type":"cloud_service","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Rancher Fleet","requires_auth":"low_privilege","summary":"Unauthenticated attackers can modify GitRepo configuration in any namespace if the webhook secret is not configured, bypassing namespace authorization controls.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"suse","cpe":[{"product":"rancher_fleet","vendor":"suse"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the spec.pollingInterval field of a matching GitRepo resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter GitRepo configuration outside\n\nthe namespaces they are authorized for.  This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected.","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":"Unauthenticated GitRepo Spec Mutation via Fleet Git Webhook Receiver","id":"CVE-2026-93539","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Fleet applies namespace labels and annotations without the bundle's service account privileges","id":"CVE-2026-93540"},"packages":[],"prev":{"headline":"Missing authorization in Rancher","id":"CVE-2026-93538"},"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":"Privilege escalation in Rancher","id":"CVE-2026-88808","kev_date_added":null,"published":"2026-09-28"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-09-28","vendors":["SUSE"]},"summary":"Unauthenticated attackers can modify GitRepo configuration in any namespace if the webhook secret is not configured, bypassing namespace authorization controls.","url":"https://insights.sbomify.com/CVE-2026-93539/"}