CVE-2026-106490

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Source

https://cve.org/CVERecord?id=CVE-2026-106490

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106490.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-106490

Aliases

GHSA-7mfx-xg57-53c9

Published

2026-10-06T20:41:26Z

Modified

2026-10-08T02:49:31Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

Backstage: Improper input validation in TechDocs static content requests

Details

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted TechDocs content when entity-level permissions are enabled. Deployments that intentionally disable the default backend authentication policy may have broader exposure. This issue is fixed in version 2.2.4.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-23"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106490.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "2.2.4"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/backstage/backstage

Affected ranges

Type

GIT

Repo

https://github.com/backstage/backstage

Events

Introduced

Fixed

40ecc4c2e88b0218125b0a3405d1f6315b321974

Fixed

0e67bc1fc88fba3a8cb716d3584cef05ecbcf9a8

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.54.6"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

Other

cli-old-cache-watch

hackweek-demo

release-2021-01-07

release-2021-01-08

release-2021-01-09

release-2021-01-14

release-2021-01-18

release-2021-01-20

release-2021-01-21

release-2021-01-28

release-2021-01-29

release-2021-02-01

release-2021-02-03

release-2021-02-05

release-2021-02-11

release-2021-02-16

release-2021-02-18

release-2021-02-23

release-2021-03-04

release-2021-03-09

release-2021-03-11

release-2021-03-16

release-2021-03-17

release-2021-03-18

release-2021-03-19

release-2021-03-25

release-2021-03-31

release-2021-04-08

release-2021-04-13

release-2021-04-15

release-2021-04-21

release-2021-04-22

release-2021-04-29

release-2021-05-04

release-2021-05-06

release-2021-05-10

release-2021-05-11

release-2021-05-12

release-2021-05-17

release-2021-05-20

release-2021-05-27

release-2021-05-31

release-2021-06-01

release-2021-06-03

release-2021-06-10

release-2021-06-17

release-2021-06-18

release-2021-06-21

release-2021-06-24

release-2021-06-28

release-2021-07-01

release-2021-07-07

release-2021-07-08

release-2021-07-14

release-2021-07-15

release-2021-07-16

release-2021-07-22

release-2021-07-29

release-2021-08-03

release-2021-08-05

release-2021-08-11

release-2021-08-12

release-2021-08-17

release-2021-08-19

release-2021-08-20

release-2021-08-26

release-2021-08-31

release-2021-09-02

release-2021-09-09

release-2021-09-14

release-2021-09-16

release-2021-09-17

release-2021-09-21

release-2021-09-23

release-2021-09-28

release-2021-09-30

release-2021-1-7

release-2021-10-04

release-2021-10-06

release-2021-10-07

release-2021-10-11

release-2021-10-13

release-2021-10-14

release-2021-10-16

release-2021-10-19

release-2021-10-21

release-2021-10-22

release-2021-10-28

release-2021-10-29

release-2021-11-08

release-2021-11-11

release-2021-11-12

release-2021-11-17

release-2021-11-18

release-2021-11-19

release-2021-11-25

release-2021-12-02

release-2021-12-07

release-2021-12-09

release-2021-12-10

release-2021-12-16

release-2021-12-23

release-2021-12-24

release-2021-12-30

release-2022-01-04

release-2022-01-13

release-2022-01-18

release-2022-01-20

release-2022-01-27

release-2021-01-14.*

release-2021-01-14.1

release-2021-01-21.*

release-2021-01-21.1

release-2021-03-11.*

release-2021-03-11.1

release-2021-03-31.*

release-2021-03-31.1

release-2021-04-22.*

release-2021-04-22.1

release-2021-05-12.*

release-2021-05-12.1

release-2021-05-20.*

release-2021-05-20.1

release-2021-06-10.*

release-2021-06-10.1

release-2021-06-17.*

release-2021-06-17.1

release-2021-06-21.*

release-2021-06-21.1

release-2021-07-14.*

release-2021-07-14.1

release-2021-10-29.*

release-2021-10-29.1

release-2021-11-11.*

release-2021-11-11.1

release-2021-11-17.*

release-2021-11-17.1

release-2022-01-20.*

release-2022-01-20.1

v0.*

v0.1.0

v0.1.1

v0.1.1-alpha.0

v0.1.1-alpha.1

v0.1.1-alpha.10

v0.1.1-alpha.11

v0.1.1-alpha.12

v0.1.1-alpha.13

v0.1.1-alpha.15

v0.1.1-alpha.16

v0.1.1-alpha.17

v0.1.1-alpha.18

v0.1.1-alpha.19

v0.1.1-alpha.2

v0.1.1-alpha.20

v0.1.1-alpha.21

v0.1.1-alpha.22

v0.1.1-alpha.23

v0.1.1-alpha.24

v0.1.1-alpha.25

v0.1.1-alpha.26

v0.1.1-alpha.3

v0.1.1-alpha.4

v0.1.1-alpha.5

v0.1.1-alpha.6

v0.1.1-alpha.7

v0.1.1-alpha.8

v0.10.0

v0.11.0

v0.11.1

v0.11.2

v0.11.3

v0.12.0

v0.13.0

v0.13.1

v0.14.0

v0.15.0

v0.16.0

v0.16.1

v0.17.0

v0.17.1

v0.17.2

v0.17.3

v0.18.0

v0.18.1

v0.19.0

v0.2.0

v0.20.0

v0.20.1

v0.21.0

v0.21.1

v0.22.0

v0.22.1

v0.22.2

v0.23.0

v0.24.0

v0.24.1

v0.25.0

v0.25.1

v0.25.2

v0.25.3

v0.26.0

v0.26.1

v0.27.0

v0.28.0

v0.29.0

v0.29.1

v0.29.2

v0.3.0

v0.3.1

v0.3.2

v0.30.0

v0.30.1

v0.31.0

v0.32.0

v0.33.0

v0.33.1

v0.33.2

v0.33.3

v0.34.0

v0.34.1

v0.35.0

v0.35.1

v0.36.0

v0.36.1

v0.36.2

v0.37.0

v0.37.1

v0.38.0

v0.39.0

v0.39.1

v0.4.0

v0.4.1

v0.4.2

v0.4.3

v0.40.0

v0.40.1

v0.41.0

v0.41.1

v0.42.0

v0.43.0

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v0.45.0

v0.46.0

v0.46.1

v0.47.0

v0.47.1

v0.47.2

v0.48.0

v0.48.1

v0.49.0

v0.5.0

v0.50.0

v0.50.1

v0.50.2

v0.51.0

v0.51.1

v0.51.2

v0.52.0

v0.52.1

v0.53.0

v0.53.1

v0.53.2

v0.53.3

v0.54.0

v0.54.1

v0.54.2

v0.54.3

v0.54.4

v0.55.0

v0.55.1

v0.56.0

v0.57.0

v0.57.1

v0.58.0

v0.58.1

v0.59.0

v0.6.0

v0.60.0

v0.60.1

v0.61.0

v0.62.0

v0.63.0

v0.63.1

v0.64.0

v0.64.1

v0.65.0

v0.66.0

v0.66.0-next.0

v0.66.0-next.1

v0.67.0

v0.67.0-next.0

v0.68.0

v0.69.0

v0.7.0

v0.70.0

v0.71.0

v0.71.0-next.0

v0.8.0

v0.8.1

v0.8.2

v0.9.0

v1.*

v1.0.0

v1.1.0

v1.1.0-next.0

v1.1.0-next.1

v1.1.0-next.2

v1.1.0-next.3

v1.10.0

v1.10.0-next.0

v1.10.0-next.1

v1.10.0-next.2

v1.11.0

v1.11.0-next.0

v1.11.0-next.1

v1.11.0-next.2

v1.12.0

v1.12.0-next.0

v1.12.0-next.1

v1.12.0-next.2

v1.13.0

v1.13.0-next.0

v1.13.0-next.1

v1.13.0-next.2

v1.13.0-next.3

v1.14.0

v1.14.0-next.0

v1.14.0-next.1

v1.14.0-next.2

v1.15.0

v1.15.0-next.0

v1.15.0-next.1

v1.15.0-next.2

v1.15.0-next.3

v1.16.0

v1.16.0-next.0

v1.16.0-next.1

v1.16.0-next.2

v1.17.0

v1.17.0-next.0

v1.17.0-next.1

v1.17.0-next.2

v1.18.0

v1.18.0-next.0

v1.18.0-next.1

v1.18.0-next.2

v1.18.0-next.3

v1.19.0

v1.19.0-next.0

v1.19.0-next.1

v1.19.0-next.2

v1.2.0

v1.2.0-next.0

v1.2.0-next.1

v1.2.0-next.2

v1.2.0-next.3

v1.20.0

v1.20.0-next.0

v1.20.0-next.1

v1.20.0-next.2

v1.21.0

v1.21.0-next.0

v1.21.0-next.1

v1.21.0-next.2

v1.21.0-next.3

v1.21.0-next.4

v1.22.0

v1.22.0-next.0

v1.22.0-next.1

v1.22.0-next.2

v1.23.0

v1.23.0-next.0

v1.23.0-next.1

v1.23.0-next.2

v1.23.0-next.3

v1.24.0

v1.24.0-next.0

v1.24.0-next.1

v1.24.0-next.2

v1.24.1

v1.24.2

v1.25.0

v1.26.0

v1.26.0-next.0

v1.26.0-next.1

v1.27.0

v1.27.0-next.0

v1.27.0-next.1

v1.27.0-next.2

v1.28.0

v1.28.0-next.0

v1.28.0-next.1

v1.28.0-next.2

v1.28.0-next.3

v1.29.0

v1.29.0-next.0

v1.29.0-next.1

v1.29.0-next.2

v1.3.0

v1.3.0-next.0

v1.3.0-next.1

v1.3.0-next.2

v1.30.0

v1.30.0-next.0

v1.30.0-next.1

v1.30.0-next.2

v1.30.0-next.3

v1.30.0-next.4

v1.31.0

v1.31.0-next.0

v1.31.0-next.1

v1.31.0-next.2

v1.32.0

v1.32.0-next.0

v1.32.0-next.1

v1.32.0-next.2

v1.33.0

v1.33.0-next.0

v1.33.0-next.1

v1.33.0-next.2

v1.33.0-next.3

v1.34.0

v1.34.0-next.0

v1.34.0-next.1

v1.34.0-next.2

v1.35.0

v1.35.0-next.0

v1.35.0-next.1

v1.35.0-next.2

v1.36.0

v1.36.0-next.0

v1.36.0-next.1

v1.36.0-next.2

v1.36.0-next.3

v1.37.0

v1.37.0-next.0

v1.37.0-next.1

v1.37.0-next.2

v1.38.0

v1.38.0-next.0

v1.38.0-next.1

v1.38.0-next.2

v1.39.0

v1.39.0-next.0

v1.39.0-next.1

v1.39.0-next.2

v1.39.0-next.3

v1.4.0

v1.4.0-next.0

v1.4.0-next.1

v1.4.0-next.2

v1.4.0-next.3

v1.40.0

v1.40.0-next.0

v1.40.0-next.1

v1.40.0-next.2

v1.40.0-next.3

v1.41.0

v1.41.0-next.0

v1.41.0-next.1

v1.41.0-next.2

v1.42.0

v1.42.0-next.0

v1.42.0-next.1

v1.42.0-next.2

v1.42.0-next.3

v1.43.0

v1.43.0-next.0

v1.43.0-next.1

v1.43.0-next.2

v1.44.0

v1.44.0-next.0

v1.44.0-next.1

v1.44.0-next.2

v1.44.0-next.3

v1.45.0

v1.45.0-next.0

v1.45.0-next.1

v1.45.0-next.2

v1.45.0-next.3

v1.46.0

v1.46.0-next.0

v1.46.0-next.1

v1.46.0-next.2

v1.47.0

v1.47.0-next.0

v1.47.0-next.1

v1.47.0-next.2

v1.47.0-next.3

v1.48.0

v1.48.0-next.0

v1.48.0-next.1

v1.48.0-next.2

v1.49.0

v1.49.0-next.0

v1.49.0-next.1

v1.49.0-next.2

v1.5.0

v1.5.0-next.0

v1.5.0-next.1

v1.5.0-next.2

v1.5.0-next.3

v1.50.0

v1.50.0-next.0

v1.50.0-next.1

v1.50.0-next.2

v1.51.0

v1.51.0-next.0

v1.51.0-next.1

v1.51.0-next.2

v1.51.0-next.3

v1.52.0

v1.52.0-next.0

v1.52.0-next.1

v1.52.0-next.2

v1.53.0

v1.53.0-next.0

v1.53.0-next.1

v1.53.0-next.2

v1.54.0

v1.54.0-next.0

v1.54.0-next.1

v1.54.0-next.2

v1.54.0-next.3

v1.54.1

v1.54.2

v1.54.3

v1.54.4

v1.54.5

v1.6.0

v1.6.0-next.0

v1.6.0-next.1

v1.6.0-next.2

v1.6.0-next.3

v1.7.0

v1.7.0-next.0

v1.7.0-next.1

v1.7.0-next.2

v1.8.0

v1.8.0-next.0

v1.8.0-next.1

v1.8.0-next.2

v1.9.0

v1.9.0-next.0

v1.9.0-next.1

v1.9.0-next.2

v1.9.0-next.3

v1.9.0-next.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106490.json"