CVE-2026-106505

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Source
https://cve.org/CVERecord?id=CVE-2026-106505
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106505.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-106505
Aliases
Published
2026-10-06T21:43:08Z
Modified
2026-10-28T02:30:24Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L CVSS Calculator
Summary
Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend
Details

Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package is affected by bypass of mkdocs configuration sanitizer in techdocs backend. Users with the ability to commit changes to a repository that uses TechDocs can circumvent the MkDocs configuration file sanitizer introduced in response to CVE-2026-25153 and execute arbitrary code on the TechDocs backend host during documentation generation. This issue is fixed in versions 1.14.6 and 1.15.4.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-426",
        "CWE-436"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106505.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "1.14.6"
                        },
                        {
                            "introduced":  "1.15.0"
                        },
                        {
                            "fixed":  "1.15.4"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StringRangeExpression"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/backstage/backstage

Affected ranges

Type
GIT
Repo
https://github.com/backstage/backstage
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f3e982bd0530f51760c8a70d21eafaa7aed2e6eb
Introduced
d7c94cba92159b2f427a412d72381b294575193f
Fixed
0e67bc1fc88fba3a8cb716d3584cef05ecbcf9a8
Introduced
cfb9f07c281effcb0683e8372fd0ee4edda498bf
Fixed
a7d995f11a5d27f0efbdbe8bb6c21b06988c79c9
Fixed
ef92d3d2b76046205c580e7152956514c15640db
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.50.5"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.51.1"
                },
                {
                    "fixed":  "1.54.6"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:1.51.0:-:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.51.0-NA"
                },
                {
                    "last_affected":  "1.51.0-NA"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:1.51.0:next0:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.51.0-next0"
                },
                {
                    "last_affected":  "1.51.0-next0"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:1.51.0:next1:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.51.0-next1"
                },
                {
                    "last_affected":  "1.51.0-next1"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:1.51.0:next2:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.51.0-next2"
                },
                {
                    "last_affected":  "1.51.0-next2"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:linuxfoundation:backstage:1.51.0:next3:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.51.0-next3"
                },
                {
                    "last_affected":  "1.51.0-next3"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "range":  [
                {
                    "fixed":  "a7d995f11a5d27f0efbdbe8bb6c21b06988c79c9"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "ef92d3d2b76046205c580e7152956514c15640db"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v1.50.5",
            "range":  [
                {
                    "fixed":  "f3e982bd0530f51760c8a70d21eafaa7aed2e6eb"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v1.54.6",
            "range":  [
                {
                    "fixed":  "0e67bc1fc88fba3a8cb716d3584cef05ecbcf9a8"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.51.0-NA
1.51.0-next0
1.51.0-next1
1.51.0-next2
1.51.0-next3
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
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v0.40.0
v0.40.1
v0.41.0
v0.41.1
v0.42.0
v0.43.0
v0.44.0
v0.44.1
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
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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
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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
v1.50.1
v1.50.2
v1.50.3
v1.50.4
v1.51.0
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-2026-106505.json"