CVE-2026-106492

Source
https://cve.org/CVERecord?id=CVE-2026-106492
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106492.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-106492
Aliases
Published
2026-10-06T20:48:05Z
Modified
2026-10-07T10:47:00Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L CVSS Calculator
Summary
Backstage: Improper preservation of access restrictions during service credential delegation
Details

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.

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-269",
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106492.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "0.17.0"
                },
                {
                    "fixed": "0.17.8"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/backstage/backstage

Affected ranges

Type
GIT
Repo
https://github.com/backstage/backstage
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.49.6"
        },
        {
            "fixed": "0.16.1"
        },
        {
            "introduced": "1.50.0-next.0"
        },
        {
            "fixed": "1.54.6"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

Other
cli-old-cache-watch
hackweek-demo
release-2021-01-07
release-2021-01-08
release-2021-01-09
release-2021-01-14
release-2021-01-18
release-2021-01-20
release-2021-01-21
release-2021-01-28
release-2021-01-29
release-2021-02-01
release-2021-02-03
release-2021-02-05
release-2021-02-11
release-2021-02-16
release-2021-02-18
release-2021-02-23
release-2021-03-04
release-2021-1-7
release-2021-01-14.*
release-2021-01-14.1
release-2021-01-21.*
release-2021-01-21.1
v0.*
v0.1.0
v0.1.1
v0.1.1-alpha.0
v0.1.1-alpha.1
v0.1.1-alpha.10
v0.1.1-alpha.11
v0.1.1-alpha.12
v0.1.1-alpha.13
v0.1.1-alpha.15
v0.1.1-alpha.16
v0.1.1-alpha.17
v0.1.1-alpha.18
v0.1.1-alpha.19
v0.1.1-alpha.2
v0.1.1-alpha.20
v0.1.1-alpha.21
v0.1.1-alpha.22
v0.1.1-alpha.23
v0.1.1-alpha.24
v0.1.1-alpha.25
v0.1.1-alpha.26
v0.1.1-alpha.3
v0.1.1-alpha.4
v0.1.1-alpha.5
v0.1.1-alpha.6
v0.1.1-alpha.7
v0.1.1-alpha.8
v0.10.0
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.12.0
v0.13.0
v0.13.1
v0.14.0
v0.15.0
v0.16.0
v0.2.0
v0.3.0
v0.3.1
v0.3.2
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.8.1
v0.8.2
v0.9.0
v1.*
v1.50.0
v1.50.0-next.0
v1.50.0-next.1
v1.50.0-next.2
v1.51.0
v1.51.0-next.0
v1.51.0-next.1
v1.51.0-next.2
v1.51.0-next.3
v1.52.0
v1.52.0-next.0
v1.52.0-next.1
v1.52.0-next.2
v1.53.0
v1.53.0-next.0
v1.53.0-next.1
v1.53.0-next.2
v1.54.0
v1.54.0-next.0
v1.54.0-next.1
v1.54.0-next.2
v1.54.0-next.3
v1.54.1
v1.54.2
v1.54.3
v1.54.4
v1.54.5

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106492.json"