CVE-2026-106558
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Backstage: Improper validation of TechDocs MkDocs configuration
Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdown_extensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation source may bypass TechDocs sanitization and cause Python objects to be imported and instantiated in the generator runtime, leading to arbitrary code execution. Earlier fixes in versions 1.14.6 and 1.15.4 did not fully address the supported mapping representation of markdown_extensions. Impact is greatest when documentation generation runs with backend credentials, filesystem access, or internal network access. This issue is fixed in versions 1.14.8, 1.15.6, and 2.0.1.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
backstage
- Vendor
- backstage
- Product
- backstage
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 1.50.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 1.51.0-next.0, < 1.54.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 1.55.0-next.0, < 1.55.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
plugin-techdocs-node
- Vendor
- @backstage
- Product
- plugin-techdocs-node
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 1.14.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 1.15.0, < 1.15.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 2.0.0, < 2.0.1 | affected | Unavailable | Unavailable | Unavailable | None listed |