Is CVE-2026-44374 in the CISA KEV catalog?

No. CVE-2026-44374 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-44374?

CVE-2026-44374 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-44374?

CVE-2026-44374 has an EPSS score of 0.17% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-44374?

Upgrade backstage\/plugin-catalog-backend-module-unprocessed to 0.6.11 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-44374

MEDIUM

4.3

CVSS v3

NVD

Description

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.

CWE-863Incorrect Authorization

How to fix

Remediation Available

backstage\/plugin-catalog-backend-module-unprocessedNVD

Affected:< 0.6.11Fixed in:0.6.11CVE-2026-44374derived from NVD

backstage\/plugin-catalog-unprocessed-entitiesNVD

Affected:< 0.2.30Fixed in:0.2.30CVE-2026-44374derived from NVD

backstage\/plugin-catalog-unprocessed-entities-commonNVD

Affected:< 0.0.15Fixed in:0.0.15CVE-2026-44374derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.17%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Vendor Advisory1

github.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-01.