{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-56231: Capgo - Broken Object Level Authorization in Build Job Control via jobId Parameter","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-56231","status":"final","version":"1","initial_release_date":"2026-06-24T11:53:08.720Z","current_release_date":"2026-06-24T11:53:08.720Z","revision_history":[{"date":"2026-06-24T11:53:08.720Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Capgo before 12.128.2 contains a broken object level authorization (BOLA) vulnerability in the POST /build/start/:jobId and POST /build/cancel/:jobId endpoints. The handlers authorize the request based only on the attacker-controlled app_id supplied in the request body and never verify that the jobId in the URL belongs to that app_id (or the same tenant/org) before issuing privileged builder commands with the server-held builder API key. An authenticated user with the app.build_native permission for any app they control can start or cancel arbitrary builder jobs belonging to other tenants by supplying a victim jobId, resulting in cross-tenant build sabotage (denial of service), unauthorized compute actions, and potential billing impact.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-56231 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-56231"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-56231"},{"category":"external","summary":"GitHub Security Advisory (GHSA-72j4-9qp5-hfrg)","url":"https://github.com/Cap-go/capgo/security/advisories/GHSA-72j4-9qp5-hfrg"},{"category":"external","summary":"VulnCheck Advisory: Capgo - Broken Object Level Authorization in Build Job Control via jobId Parameter","url":"https://www.vulncheck.com/advisories/capgo-broken-object-level-authorization-in-build-job-control-via-jobid-parameter"}]},"product_tree":{"branches":[{"category":"vendor","name":"Capgo","branches":[{"category":"product_name","name":"Capgo","branches":[{"category":"product_version_range","name":"<12.128.2","product":{"name":"Capgo Capgo <12.128.2","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:capgo:capgo:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"12.128.2","product":{"name":"Capgo Capgo 12.128.2","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:capgo:capgo:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-56231","title":"Capgo - Broken Object Level Authorization in Build Job Control via jobId Parameter","notes":[{"category":"description","text":"Capgo before 12.128.2 contains a broken object level authorization (BOLA) vulnerability in the POST /build/start/:jobId and POST /build/cancel/:jobId endpoints. The handlers authorize the request based only on the attacker-controlled app_id supplied in the request body and never verify that the jobId in the URL belongs to that app_id (or the same tenant/org) before issuing privileged builder commands with the server-held builder API key. An authenticated user with the app.build_native permission for any app they control can start or cancel arbitrary builder jobs belonging to other tenants by supplying a victim jobId, resulting in cross-tenant build sabotage (denial of service), unauthorized compute actions, and potential billing impact.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"],"fixed":["CSAFPID-2"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","baseScore":7.2,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 12.128.2.","product_ids":["CSAFPID-1"]}]}]}