CVE-2026-29185
CVE-2026-29185 is a low-severity vulnerability in Linuxfoundation Backstage/integration with a CVSS 3.x base score of 2.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Low (CVSS 3.x base score 2.7)
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-10145
- Weakness: CWE-22
- Affected product: Linuxfoundation Backstage/integration
- Published:
- Last modified:
Description
Backstage is an open framework for building developer portals. Prior to version 1.20.1, a vulnerability in the SCM URL parsing used by Backstage integrations allowed path traversal sequences in encoded form to be included in file paths. When these URLs were processed by integration functions that construct API URLs, the traversal segments could redirect requests to unintended SCM provider API endpoints using the configured server-side integration credentials. This issue has been patched in version 1.20.1.
Frequently asked questions
- What is CVE-2026-29185?
- Backstage is an open framework for building developer portals. Prior to version 1.20.1, a vulnerability in the SCM URL parsing used by Backstage integrations allowed path traversal sequences in encoded form to be included in file paths. When these URLs were processed by integration functions that construct API URLs, the traversal segments could redirect requests to unintended SCM provider API endpoints using the configured server-side integration credentials. This issue has been patched in version 1.20.1.
- How severe is CVE-2026-29185?
- CVE-2026-29185 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-29185 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-29185?
- CVE-2026-29185 affects Linuxfoundation Backstage/integration. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-29185?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-29185 have an EU (EUVD) identifier?
- Yes. CVE-2026-29185 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10145.
- When was CVE-2026-29185 published?
- CVE-2026-29185 was published on 2026-03-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:linuxfoundation:backstage\/integration:*:*:*:*:*:node.js:*:*
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