Backstage is an open framework for building developer portals. Prior to 0.16.1 and 0.17.8, the @backstage/backend-defaults package is affected by improper preservation of access restrictions during service credential delegation. An external service credential configured with access restrictions (e.g., read-only) could bypass those restrictions by routing requests through plugin delegation paths. This could allow a restricted service to perform operations beyond its intended scope, including write operations on plugins it was restricted to read-only access for. This issue is fixed in versions 0.16.1 and 0.17.8.
Metrics
Affected Vendors & Products
References
History
Thu, 22 Oct 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Linuxfoundation
Linuxfoundation backstage Linuxfoundation backstage\/backend-defaults |
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| CPEs | cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* cpe:2.3:a:linuxfoundation:backstage\/backend-defaults:*:*:*:*:*:node.js:*:* |
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| Vendors & Products |
Linuxfoundation
Linuxfoundation backstage Linuxfoundation backstage\/backend-defaults |
Fri, 09 Oct 2026 09:15:00 +0000
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| First Time appeared |
Backstage
Backstage backend-defaults Backstage backstage |
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| Vendors & Products |
Backstage
Backstage backend-defaults Backstage backstage |
Fri, 09 Oct 2026 02:30:00 +0000
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| Metrics |
ssvc
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Wed, 07 Oct 2026 12:30:00 +0000
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| Weaknesses | CWE-281 | |
| References |
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| Metrics |
threat_severity
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threat_severity
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Tue, 06 Oct 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | Backstage is an open framework for building developer portals. Prior to 0.16.1 and 0.17.8, the @backstage/backend-defaults package is affected by improper preservation of access restrictions during service credential delegation. An external service credential configured with access restrictions (e.g., read-only) could bypass those restrictions by routing requests through plugin delegation paths. This could allow a restricted service to perform operations beyond its intended scope, including write operations on plugins it was restricted to read-only access for. This issue is fixed in versions 0.16.1 and 0.17.8. | |
| Title | Backstage: Improper preservation of access restrictions during service credential delegation | |
| Weaknesses | CWE-269 CWE-863 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-06T20:48:05.896Z
Updated: 2026-10-09T01:51:07.252Z
Reserved: 2026-10-06T18:46:47.766Z
Link: CVE-2026-106492
Updated: 2026-10-09T01:51:03.342Z
Status : Analyzed
Published: 2026-10-06T21:17:18.220
Modified: 2026-10-22T13:40:44.623
Link: CVE-2026-106492