Authorization Flaw in @backstage/plugin-catalog-unprocessed-entities-common (CVE-2026-44374)
Summary
Vulnerability in @backstage/plugin-catalog-unprocessed-entities-common (CVE-2026-44374). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 0.0.15 or later.
Original description
The description as published by the source.
Impact
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.
Patches
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. Users should upgrade all packages.
Workarounds
If users cannot upgrade, they can remove the @backstage/plugin-catalog-backend-module-unprocessed module from their backend until the patch is applied. There is no configuration-based workaround to add permission checks to these endpoints
without upgrading.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-44374 has been found in @backstage/plugin-catalog-unprocessed-entities-common.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: upgrade @backstage/plugin-catalog-unprocessed-entities-common to 0.0.15 or later.
If unsure, ask your IT team or search "@backstage/plugin-catalog-unprocessed-entities-common CVE-2026-44374" on the vendor's site.
CVE-2026-44374 (@backstage/plugin-catalog-unprocessed-entities-common) — CWE-863 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Patched: 0.0.15 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Incorrect authorization (CWE-863) exists in @backstage/plugin-catalog-unprocessed-entities-common.
Check the vendor advisory for the affected versions of @backstage/plugin-catalog-unprocessed-entities-common.
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure.
Update to 0.0.15.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r '@backstage/plugin-catalog-unprocessed-entities-common' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r '@backstage/plugin-catalog-unprocessed-entities-common' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
@backstage/plugin-catalog-unprocessed-entities-commonを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade @backstage/plugin-catalog-unprocessed-entities-common to 0.0.15ステージング環境で 0.0.15 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- patch security-advisories@github.com
- web github.com