{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-55998 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-55998 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-55998 is a medium-severity vulnerability in SUSE Rancher, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55998 and fix it if it is affected.\n\nWhat it is: CVE-2026-55998 is a medium-severity vulnerability in SUSE Rancher, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-55998 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-2026-55998/ (Markdown: https://insights.sbomify.com/CVE-2026-55998/index.md)","id":"CVE-2026-55998","markdown":"https://insights.sbomify.com/CVE-2026-55998/index.md","name":"CVE-2026-55998","record":{"aliases":["GHSA-23h9-rr79-r3gh"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Rancher container management","requires_auth":"none","summary":"Attackers can enumerate valid cluster IDs by observing HTTP response differences from an unauthenticated import endpoint, exposing infrastructure topology.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"suse","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-204","name":"Observable Response Discrepancy"}],"description":"The endpoint /v3/import/{token}_{clusterId}.yaml retrieves the cluster object before validating the token. When a valid cluster ID references a cluster that has private registry secrets configured, a nil pointer dereference in pkg/systemtemplate/private_registry.go causes the request to return HTTP 502 Bad Gateway. For cluster IDs that do not exist, the endpoint returns HTTP 200. This observable difference in response codes constitutes a reliable enumeration oracle.","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":"Cluster Existence Oracle via Unauthenticated Import Endpoint","id":"CVE-2026-55998","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"xorg-server / xwayland glamor font atlas Heap Buffer Overflow","id":"CVE-2026-55999"},"packages":[],"prev":{"headline":"Long-lived Rancher registration token exposed in plaintext","id":"CVE-2026-55997"},"products":["Rancher"],"published":"2026-08-05","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["SUSE"]},"summary":"Attackers can enumerate valid cluster IDs by observing HTTP response differences from an unauthenticated import endpoint, exposing infrastructure topology.","url":"https://insights.sbomify.com/CVE-2026-55998/"}