{"answers":{"affected":"4 open source packages ship an affected version, including github.com/projectcapsule/capsule-proxy and github.com/projectcapsule/capsule. It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-46254 in the wild and no public exploit code.","fix":"Upgrade github.com/projectcapsule/capsule-proxy to 0.4.5 or later.","what":"CVE-2023-46254 is a medium-severity vulnerability in projectcapsule capsule-proxy, published on 6 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-46254 and fix it if it is affected.\n\nWhat it is: CVE-2023-46254 is a medium-severity vulnerability in projectcapsule capsule-proxy, published on 6 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-46254 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/projectcapsule/capsule-proxy (Go): affected all versions; fixed in 0.4.5\n- github.com/projectcapsule/capsule-proxy (Go): affected all versions; fixed in 0.4.5\n- github.com/projectcapsule/capsule (Go): affected all versions; fixed in 0.4.5\n- github.com/projectcapsule/capsule (Go): affected all versions; fixed in 0.4.5\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-2023-46254/ (Markdown: https://insights.sbomify.com/CVE-2023-46254/index.md)","id":"CVE-2023-46254","markdown":"https://insights.sbomify.com/CVE-2023-46254/index.md","name":"CVE-2023-46254","record":{"aliases":["GHSA-6758-979h-249x"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Kubernetes multi-tenancy proxy","requires_auth":"low_privilege","summary":"Tenant owners can list namespaces of other tenants with identical ServiceAccount names, exposing infrastructure metadata.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"capsule","vendor":"clastix"},{"product":"capsule-proxy","vendor":"clastix"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"capsule-proxy is a reverse proxy for Capsule kubernetes multi-tenancy framework. A bug in the RoleBinding reflector used by `capsule-proxy` gives ServiceAccount tenant owners the right to list Namespaces of other tenants backed by the same owner kind and name. For example consider two tenants `solar` and `wind`. Tenant `solar`, owned by a ServiceAccount named `tenant-owner` in the Namespace `solar`. Tenant `wind`, owned by a ServiceAccount named `tenant-owner` in the Namespace `wind`. The Tenant owner `solar` would be able to list the namespaces of the Tenant `wind` and vice-versa, although this is not correct. The bug introduces an exfiltration vulnerability since allows the listing of Namespace resources of other Tenants, although just in some specific conditions: 1. `capsule-proxy` runs with the `--disable-caching=false` (default value: `false`) and 2. Tenant owners are ServiceAccount, with the same resource name, but in different Namespaces. This vulnerability doesn't allow any privilege escalation on the outer tenant Namespace-scoped resources, since the Kubernetes RBAC is enforcing this. This issue has been addressed in version 0.4.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Service accounts can see namespaces of other tenants in capsule-proxy","id":"CVE-2023-46254","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"information_disclosure","year":"2023"},"n_packages":4,"n_references":2,"next":{"headline":"`SPICEDB_DATASTORE_CONN_URI` is leaked when URI cannot be parsed","id":"CVE-2023-46255"},"packages":[{"ecosystem":"Go","fixed":["0.4.5"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule","purl":null,"source":"GHSA-6758-979h-249x"},{"ecosystem":"Go","fixed":["0.4.5"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule","purl":"pkg:golang/github.com/projectcapsule/capsule","source":"GHSA-6758-979h-249x"},{"ecosystem":"Go","fixed":["0.4.5"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule-proxy","purl":null,"source":"GHSA-6758-979h-249x"},{"ecosystem":"Go","fixed":["0.4.5"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule-proxy","purl":"pkg:golang/github.com/projectcapsule/capsule-proxy","source":"GHSA-6758-979h-249x"}],"prev":{"headline":"Remote code execution in Squidex","id":"CVE-2023-46253"},"products":["capsule-proxy"],"published":"2023-11-06","related":[{"cvss_score":8.8,"headline":"Capsule vulnerable to privilege escalation by ServiceAccount deployed in a Tenant Namespace","id":"CVE-2022-46167","kev_date_added":null,"published":"2022-12-02"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-02","vendors":["projectcapsule"]},"summary":"Tenant owners can list namespaces of other tenants with identical ServiceAccount names, exposing infrastructure metadata.","url":"https://insights.sbomify.com/CVE-2023-46254/"}