Backstage: Improper filesystem validation in Bitbucket pull-request scaffolder actions (backstage backstage)

CVE-2026-106486
HIGH 8.5

En bref

Source
NVD
EPSS
EPSS 0.37 % · centile 31 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
GitHub_M
Statut NVD
Analyzed

Description

Backstage is an open framework for building developer portals. Prior to 0.3.10 in @backstage/plugin-scaffolder-backend-module-bitbucket-cloud and 0.2.25 in @backstage/plugin-scaffolder-backend-module-bitbucket-server, the Bitbucket pull-request Scaffolder actions did not sufficiently validate filesystem paths. An authenticated user who can execute an eligible template and influence an allowed Bitbucket repository could affect paths outside the expected working area, potentially compromising backend confidentiality, integrity, or availability. This issue is fixed in @backstage/plugin-scaffolder-backend-module-bitbucket-cloud 0.3.10 and @backstage/plugin-scaffolder-backend-module-bitbucket-server 0.2.25.

Faiblesses (CWE)

  • CWE-22 — Traversée de répertoire
  • CWE-59 — Suivi de lien non maîtrisé

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HGitHub_M
CVSS 3.1HIGH 8.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HNVD · security-advisories@github.com (Secondary)
CVSS 3.1CRITICAL 9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Avis

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
backstage · backstageaffected < 1.54.6
@backstage · plugin-scaffolder-backend-module-bitbucket-cloudaffected < 0.3.10
@backstage · plugin-scaffolder-backend-module-bitbucket-serveraffected < 0.2.25

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD