CVE-2026-29185

lowpriority · track · 0EPSS 0.004 · 31 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (31st) EPSS

CVSS 2.7 · low

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

2.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nsecondary · security-advisories@github.comexploitability 1.2 · impact 1.4

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nsecondary · OSV

v3.12.5lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USCWE-22US

affected products (3)

Products and version ranges known to be affected.

backstage backstage≤ < 1.20.1enisa_euvdEU
linuxfoundation backstage/integration< 1.20.1nvdUScpe:2.3:a:linuxfoundation:backstage\/integration:*:*:*:*:*:*:*:*
npm @backstage/integration< 1.20.1osvUSpkg:npm/%40backstage/integration

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-95v5-prp4-5gv5Backstage vulnerable to potential reading of SCM URLs using built in token2026-03-05ghsa · osvUS
### Impact 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 affects instances that use any of the SCM integrations (GitHub, Bitbucket Server, Bitbucket Cloud) with the scaffolder or other features that accept user-provided SCM URLs. ### Patches This is patched in `@backstage/integration` version 1.20.1. ### Workarounds There is no workaround for this vulnerability. Users should upgrade to the patched version. ### References - Backstage SCM integration documentation: https://backstage.io/docs/integrations/

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2026-03-07modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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