{"id":"CVE-2026-106496","title":"Backstage is an open framework for building developer portals","summary":"Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent enforcement of allowed location types during catalog processing. Under certain confi…","severity":"low","cvss":3.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-22","CWE-863","CWE-552"],"vendor":"linuxfoundation","product":"backstage_plugin-catalog-backend","affected":["backstage_plugin-catalog-backend < 3.9.1","backstage < 1.54.6"],"patched":["backstage_plugin-catalog-backend 3.9.1","backstage 1.54.6"],"published":"2026-10-06","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:33:47.510","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106496","references":[{"url":"https://github.com/backstage/backstage/commit/23774b61560d851bc69cd6a77d12561b24d11afd","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-pcmq-25r3-5w9v","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106496"},{"url":"https://github.com/advisories/GHSA-pcmq-25r3-5w9v"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106496.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-106496"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2547211"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-106496"}],"tags":["nvd","cve.org","ghsa","npm","csaf","vex","red-hat"],"epss":0.00244,"epssPercentile":0.15487,"aliases":["GHSA-pcmq-25r3-5w9v"],"ecosystem":"npm","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-07T15:27:09.255888Z"},"ingestedAt":"2026-10-06T22:23:15.965Z","slug":"CVE-2026-106496","body":"## Overview\n\nBackstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent enforcement of allowed location types during catalog processing. Under certain configurations, the catalog backend could process location types that were not intended to be allowed, potentially leading to unintended file access on the backend host. This issue is fixed in version 3.9.1.\n\n## Affected\n\n- `backstage_plugin-catalog-backend < 3.9.1`\n- `backstage < 1.54.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `backstage_plugin-catalog-backend 3.9.1`\n- `backstage 1.54.6`\n\n## Package advisory (CVE-2026-106496)\n\nAffected packages:\n\n- `@backstage/plugin-catalog-backend < 3.9.1`\n\nPatched in:\n\n- `@backstage/plugin-catalog-backend 3.9.1`\n\nSource: https://github.com/advisories/GHSA-pcmq-25r3-5w9v\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Developer Hub, Self-service automation portal 2 · no fix planned: Red Hat Developer Hub, Self-service automation portal 2 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106496.json)","depth":"sunlit","depthScore":17,"depthScoreParts":{"impact":17.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}