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Medium 4.3Published May 14, 2026

CVE-2026-44374Backstage: Catalog unprocessed read endpoints allow authenticated cross-owner data access without permission checks

Updated under an hour ago ()

Does this affect you?

It affects @backstage plugin-catalog-backend-module-unprocessed and 5 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Backstage is an open framework for building developer portals. Prior to 0.6.11, the unprocessed entities read endpoints in @backstage/plugin-catalog-backend-module-unprocessed do not enforce permission authorization checks. Any authenticated user can access unprocessed entity records regardless of ownership. This is an information disclosure vulnerability affecting Backstage installations using this module. This is patched in @backstage/plugin-catalog-backend-module-unprocessed version 0.6.11, @backstage/plugin-catalog-unprocessed-entities-common version 0.0.15 and @backstage/plugin-catalog-unprocessed-entities version 0.2.30.

CVSS
4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-863
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
May 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
@backstage plugin-catalog-backend-module-unprocessed
backstage:plugin_catalog_backend_module_unprocessed (from the name)
before 0.6.11
CNA record
@backstage plugin-catalog-unprocessed-entities
backstage:plugin_catalog_unprocessed_entities (from the name)
before 0.2.30
CNA record
@backstage plugin-catalog-unprocessed-entities-common
backstage:plugin_catalog_unprocessed_entities_common (from the name)
before 0.0.15
CNA record
linuxfoundation backstage/plugin-catalog-backend-module-unprocessed
linuxfoundation:backstage/plugin-catalog-backend-module-unprocessed
before 0.6.11
NVD
linuxfoundation backstage/plugin-catalog-unprocessed-entities
linuxfoundation:backstage/plugin-catalog-unprocessed-entities
before 0.2.30
NVD
linuxfoundation backstage/plugin-catalog-unprocessed-entities-common
linuxfoundation:backstage/plugin-catalog-unprocessed-entities-common
before 0.0.15
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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