CVE-2026-106562

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Backstage is an open framework for building developer portals.

Vendor / product: Linuxfoundation — backstage\/plugin-search-backend

Backstage is an open framework for building developer portals. Prior to 2.1.6 in @backstage/plugin-search-backend and 1.8.7 in @backstage/plugin-search-backend-module-elasticsearch, search engine permission filtering could return documents denied by policy. An authenticated Backstage user subject to a DENY policy for search document types could receive unauthorized results in deployments with permission.enabled set to true and an Elasticsearch or OpenSearch backend. This issue is fixed in @backstage/plugin-search-backend 2.1.6 and @backstage/plugin-search-backend-module-elasticsearch 1.8.7.

CVSS

4.3

4.3 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity source: NVD CVSS v3.1 (security-advisories@github.com)

Timeline (UTC)

Published: 2026-10-07 15:17

Modified: 2026-10-16 14:53

NVD status: Analyzed

Last synced 1 day ago

Verified against the source API 2026-10-27 06:58 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linuxfoundation / backstage\/plugin-search-backend <2.1.6

linuxfoundation / backstage\/plugin-search-backend-module-elasticsearch <1.8.7

linuxfoundation / backstage <1.54.1

Weakness classification (CWE)

CWE-754 CWE-863

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/backstage/backstage/security/advisories/GHSA-9325-vq29-gp3v

Patch / mitigation: https://github.com/backstage/backstage/commit/2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29

Patch / mitigation: https://github.com/backstage/backstage/releases/tag/v1.54.1

Patch / mitigation: https://github.com/backstage/backstage/security/advisories/GHSA-9325-vq29-gp3v

References

https://github.com/backstage/backstage/commit/2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29 security-advisories@github.com
https://github.com/backstage/backstage/releases/tag/v1.54.1 security-advisories@github.com
https://github.com/backstage/backstage/security/advisories/GHSA-9325-vq29-gp3v security-advisories@github.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗

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CVE-2026-106562

Affected products

Weakness classification (CWE)

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References

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