{"id":"CVE-2026-59386","kind":"vulnerability","aliases":["CVE-2026-59386"],"related":[],"title":"Cloud Foundry: SpaceSupporter can alter app start commands and buildpacks","description":"A SpaceSupporter could improperly modify an application's start command and buildpack—actions requiring SpaceDeveloper privileges. This privilege escalation enables unauthorized retrieval of service credentials through malicious start commands or custom buildpacks.","summary":"A user with the SpaceSupporter role can change an application's start command and buildpack, which should require the SpaceDeveloper role. An attacker can use this to retrieve service credentials through a malicious start command or custom buildpack.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cloud-foundry","infrastructure","self-hosted"],"not_affected_if":["no-spacesupporter-users"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-30T09:17:14+00:00","first_seen_at":"2026-10-30T09:29:38+00:00","triaged_at":"2026-10-30T09:30:39+00:00","updated_at":"2026-10-30T09:30:39+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-30T09:30:39Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Cloud Foundry: SpaceSupporter can alter app start commands and buildpacks","impact":"medium","summary":"A user with the SpaceSupporter role can change an application's start command and buildpack, which should require the SpaceDeveloper role. An attacker can use this to retrieve service credentials through a malicious start command or custom buildpack.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["cloud-foundry","self-hosted"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"Service credentials retrieved by a low-privilege space user","analyst_note":"Find the affected and fixed Cloud Foundry component versions and the vendor advisory in the NVD entry's references.","how_to_check":"- unknown","plain_action":"","needs_analyst":true,"not_affected_if":["no-spacesupporter-users"],"who_is_affected":"Teams running Cloud Foundry deployments where some users hold the SpaceSupporter role alongside applications bound to services with credentials. Installations that do not grant SpaceSupporter to anyone, or that restrict who can change app start commands and buildpacks, are less exposed. The sources do not name affected versions.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000649,"input_tokens":4103,"output_tokens":478,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-59386':13A,16A 'action':74C 'alter':5A 'app':6A 'applic':33B,68C 'attack':46B 'buildpack':10A,38B,61B,73C,93C 'chang':31B 'cloud':1A,18B 'cloud-foundri':17B 'command':8A,36B,58B,71C,90C 'could':64C 'credenti':53B,86C 'custom':60B,92C 'cve':11A,14A 'enabl':81C 'escal':80C 'foundri':2A,19B 'host':23B 'improp':65C 'infrastructur':20B 'malici':56B,88C 'modifi':66C 'privileg':77C,79C 'requir':41B,75C 'retriev':51B,83C 'role':29B,44B 'self':22B 'self-host':21B 'servic':52B,85C 'spacedevelop':43B,76C 'spacesupport':3A,28B,63C 'start':7A,35B,57B,70C,89C 'unauthor':82C 'use':48B 'user':25B","nicknames":[],"mitigations":[],"who_affected":"Teams running Cloud Foundry deployments where some users hold the SpaceSupporter role alongside applications bound to services with credentials. Installations that do not grant SpaceSupporter to anyone, or that restrict who can change app start commands and buildpacks, are less exposed. The sources do not name affected versions.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"first_public_at":"2026-10-30T09:17:14+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","cvss_by":"security@vmware.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-59386","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59386","severity":null,"published_at":"2026-10-30T09:17:14+00:00","modified_at":"2026-10-30T09:17:14+00:00","first_seen_at":"2026-10-30T09:29:38+00:00","fetched_at":"2026-10-30T09:29:38+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}