CVE Vulnerability Catalog

In sshd in OpenSSH before 10.6, GSSAPIAuthentication authentication state can incorrectly be persisted across authentication attempts.

In sshd in OpenSSH before 10.6, credentials can incorrectly persist after failure of a GSSAPIAuthentication authentication attempt.

In sftp in OpenSSH before version 10.6, a server can trigger directory traversal (causing files to be written to unintended locations) during a recursive copy operation.

Mozilla's Node-convict (version 6.2.2 and later) is vulnerable to a Denial of Service vulnerability caused by incomplete prototype-pollution protections in config.set(). An attacker controlling the configuration key can write arbitrary properties to constructor.<key>, which walk() resolves to the global Object function. This allows overwriting core JavaScript methods such as Object.assign, leading to persistent process-wide failures and requiring a restart. The issue bypasses existing filters that only block constructor.prototype.* and __proto__.*. Exploitation requires an endpoint that forwards attacker-controlled keys into config.set().

A heap-based buffer overflow in H5VM_array_fill() in src/H5VM.c in HDF5 before 2.2.0. A crafted HDF5 file can cause an application crash and possibly execute arbitrary code when unallocated chunks of a dataset are read and metadata is inconsistent with the buffer's allocated size.

Backstage before version 0.17.8 in the @backstage/backend-defaults package has improper input validation in cloud storage url readers. An attacker with write access to a cloud storage bucket used by Backstage could craft object names that could collide with protected files in the output directory. In certain deployment configurations, this could lead to content injection.

Cloud storage catalog providers in Backstage before 1.54.6 did not sufficiently validate object paths. A principal able to create or rename objects in a configured Azure Blob Storage or AWS S3 catalog source could cause catalog descriptors to be read from outside the intended storage boundary, limited to locations reachable with the backend's configured credentials.

The @backstage/backend-defaults package before versions 0.16.1 and 0.17.8 improperly preserves access restrictions during service credential delegation. An external service credential configured with access restrictions (e.g., read-only) could bypass those restrictions by routing requests through plugin delegation paths.

Backstage before version 0.6.17 in the @backstage/plugin-proxy-backend package has improper input validation in proxy-backend. An authenticated Backstage user could craft a request URL that causes the proxy-backend to forward the request to a path outside the configured base path on the target server. This is limited to target servers already configured as proxy endpoints and requires Backstage authentication by default.

Backstage before version 2.2.4 in the @backstage/plugin-techdocs-backend package has 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.

Backstage before version 2.2.4 in the @backstage/plugin-techdocs-backend package has improper authorization enforcement for techdocs static content. An authenticated user with access to one TechDocs documentation site could craft a URL able to read documentation belonging to a different entity. This only affects deployments using the external TechDocs builder with an external storage provider (S3, GCS, etc.) and the permission framework enabled. Instances that do not use the permission framework are unaffected, since TechDocs content is visible to all authenticated users by design.

The @backstage/plugin-auth-backend-module-oidc-provider package before version 0.4.20 has improper authentication in the OIDC provider. Deployments using OIDC email-based identity resolution with a provider that permits unverified email addresses may allow an authenticated provider user to assume another catalog identity.

The @backstage/plugin-kubernetes-backend package in Backstage before 0.21.10 is affected by an unsupported catalog cluster authentication mode in the Kubernetes backend. Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities. With the required endpoint permissions and pod RBAC, the backend can use its local in-cluster identity, potentially exposing Kubernetes resources readable by that identity. The credential is used only with the local in-cluster API endpoint and is not sent to the catalog-supplied endpoint.

The @backstage/plugin-scaffolder-backend-module-bitbucket-cloud before 0.3.10 and @backstage/plugin-scaffolder-backend-module-bitbucket-server before 0.2.25 do not sufficiently validate filesystem paths in Bitbucket pull-request Scaffolder actions. An authenticated user who can execute an eligible template and influence an allowed Bitbucket repository could affect paths outside the expected working area.

Backstage before version 0.8.7 in the @backstage/plugin-catalog-backend-module-gitlab package has improper authorization in gitlab organizational user ingestion. Deployments that enable GitLab organization event ingestion and rely on scoped catalog users as an access boundary may admit an unintended catalog identity. Depending on sign-in and permission configuration, this may allow unauthorized access with the permissions of a standard authenticated user.

Backstage prior to 1.54.6 does not consistently enforce credential boundaries in scaffolder source-control actions. An authenticated user could cause an affected action to fall back to broader integration credentials and perform operations with more access than intended. This issue is fixed in 1.54.6 when operators also enable scaffolder.requireScmUserCredentials after upgrading.

In @backstage/plugin-scaffolder-backend prior to 4.1.0, incorrect authorization in scaffolder task listing allows an authenticated internal user to view metadata for tasks outside the intended visibility. Stored task secrets are not included, and no integrity or availability impact was identified. Fixed in version 4.1.0.

In @backstage/plugin-auth-node from 0.3.0 to 0.6.15 and 0.7.5, explicit negative email verification was not consistently honored during shared OAuth profile normalization. In affected configurations, a user may assume another catalog identity and obtain its associated access and permissions. Fixed in versions 0.6.15 and 0.7.5.

The @backstage/plugin-scaffolder-backend-module-sentry package from 0.3.0 until 0.3.8 has improper input validation in Sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials.

In @backstage/plugin-catalog-backend-module-bitbucket-server from 0.4.0 to 0.5.15, inconsistent repository filtering in Bitbucket Server catalog event updates may allow ingestion of locations from repositories excluded by filters. Fixed in version 0.5.15.