{"answers":{"affected":"3 open source packages ship an affected version, including github.com/projectcapsule/capsule.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55205 exists.","fix":"Upgrade github.com/projectcapsule/capsule to 0.10.4 or later.","what":"CVE-2025-55205 is a critical vulnerability in projectcapsule capsule, published on 18 Aug 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-55205 and fix it if it is affected.\n\nWhat it is: CVE-2025-55205 is a critical vulnerability in projectcapsule capsule, published on 18 Aug 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55205 exists.\n\nAffected packages and fixed versions:\n- github.com/projectcapsule/capsule (Go): affected all versions; fixed in 0.10.4\n- github.com/projectcapsule/capsule (Go): affected all versions; fixed in 0.10.4\n- github.com/projectcapsule/capsule (Go): affected all versions; fixed in 0.10.4\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-2025-55205/ (Markdown: https://insights.sbomify.com/CVE-2025-55205/index.md)","id":"CVE-2025-55205","markdown":"https://insights.sbomify.com/CVE-2025-55205/index.md","name":"CVE-2025-55205","record":{"aliases":["GHSA-fcpm-6mxq-m5vv","GO-2025-3893"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Kubernetes multi-tenancy framework","requires_auth":"low_privilege","summary":"Authenticated tenant users can inject labels into system namespaces, bypassing isolation and escalating privileges to access cross-tenant resources.","user_interaction":"required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Capsule is a multi-tenancy and policy-based framework for Kubernetes. A namespace label injection vulnerability in Capsule v0.10.3 and earlier allows authenticated tenant users to inject arbitrary labels into system namespaces (kube-system, default, capsule-system), bypassing multi-tenant isolation and potentially accessing cross-tenant resources through TenantResource selectors. This vulnerability enables privilege escalation and violates the fundamental security boundaries that Capsule is designed to enforce. This vulnerability is fixed in 0.10.4.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Capsule tenant owners with \"patch namespace\" permission can hijack system namespaces label","id":"CVE-2025-55205","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"privilege_escalation","year":"2025"},"n_packages":3,"n_references":2,"next":{"headline":"@astrojs/node's trailing slash handling causes open redirect issue","id":"CVE-2025-55207"},"packages":[{"ecosystem":"Go","fixed":["0.10.4"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule","purl":null,"source":"GHSA-fcpm-6mxq-m5vv"},{"ecosystem":"Go","fixed":["0.10.4"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule","purl":"pkg:golang/github.com/projectcapsule/capsule","source":"GHSA-fcpm-6mxq-m5vv"},{"ecosystem":"Go","fixed":["0.10.4"],"introduced":["0"],"last_affected":[],"package":"github.com/projectcapsule/capsule","purl":"pkg:golang/github.com/projectcapsule/capsule","source":"GO-2025-3893"}],"prev":{"headline":"muffon has One-click Remote Code Execution via XSS and Custom URL Handling","id":"CVE-2025-55204"},"products":["capsule"],"published":"2025-08-18","related":[],"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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-08-18","vendors":["projectcapsule"]},"summary":"Authenticated tenant users can inject labels into system namespaces, bypassing isolation and escalating privileges to access cross-tenant resources.","url":"https://insights.sbomify.com/CVE-2025-55205/"}