GHSA-QMW3-745M-W99G Backstage: Improper validation of TechDocs MkDocs configuration

Impact An attacker who can provide configuration to a TechDocs build may execute code in the generator runtime. Impact is greatest when documentation generation runs with backend credentials or host access. Patches Patched in @backstage/plugin-techdocs-node version 1.15.4. Workarounds Use externa...

GHSA-75QF-886X-5XF2 Backstage: Improper input validation in Confluence to Markdown scaffolder module

Impact Insufficient input validation in the Confluence to Markdown scaffolder module could allow an attacker to influence file write operations during template execution. Exploitation requires a Backstage user to run a template that processes attacker-influenced Confluence content. Patches Patche...

GHSA-2CMG-V53W-8XFP Backstage: Improper repository path validation in a Scaffolder backend module

Impact An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process. Patches Patched in...

GHSA-9325-VQ29-GP3V Backstage has incorrect authorization in search engine permission filtering

Impact An authenticated Backstage user subject to a DENY policy for search document types could receive search results they were not authorized to view. This affects deployments with permission.enabled: true and an Elasticsearch or OpenSearch search backend. Patches - Upgrade...

GHSA-R9PH-3637-55PX Backstage: Improper entity validation in deprecated Kubernetes services endpoint

Impact An authenticated user with Kubernetes read permissions could access Kubernetes workload data beyond their intended scope by supplying crafted entity data to the deprecated services endpoint. The exposure is limited to read-only access to Kubernetes object metadata across configured cluster...

GHSA-P795-MQF2-36MF Backstage has a sensitive information disclosure in Kubernetes resource queries

Impact An authenticated user holding the standard Kubernetes resource read permission could retrieve sensitive values that the Kubernetes plugin is designed to mask, potentially exposing credentials and other confidential material held in the connected clusters. Exposure is limited to resources...

GHSA-29GX-H2M3-XW44 Backstage's scaffolder credential handling may allow unintended GitHub authentication fallback

Impact Scaffolder actions that interact with source control systems may not consistently enforce the intended credential boundaries under certain configurations. An authenticated user could perform operations with broader access than intended. Patches - @backstage/plugin-scaffolder-backend versio...

GHSA-GP6M-X9VW-5C5X Backstage has improper authorization in GitLab organizational user ingestion

Impact 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 authenticate...

GHSA-G8RX-F7M5-7794 Backstage has iImproper filesystem validation in Bitbucket pull-request scaffolder actions

Impact An authenticated user who can execute an eligible template and influence an allowed Bitbucket repository could affect filesystem paths outside the expected working area. Depending on the backend deployment, this could compromise backend confidentiality, integrity, or availability. Patches ...

GHSA-H53X-HJX6-25GR Backstage: Unsupported catalog cluster authentication mode in kubernetes backend

Impact 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...

GHSA-826H-28H9-65HG Backstage: Improper authentication in the OIDC provider

Impact 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. This may grant access and permissions associated with that user. No direct availability impact is...

GHSA-RG9R-HR7G-5GC2 Backstage: Improper authorization enforcement for TechDocs static content

Impact 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...

GHSA-7MFX-XG57-53C9 Backstage: Improper input validation in TechDocs static content requests

Impact 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. Patches Patched...

GHSA-XVH9-35W9-42M4 Backstage: Cloud storage catalog locations may cross configured storage boundaries

Impact Catalog entity providers for Azure Blob Storage and AWS S3 did not sufficiently validate storage object paths, which could allow catalog descriptors to be read from outside the intended storage boundary. Access is limited to locations reachable by the backend's configured credentials...

GHSA-9GHW-48H5-V2W5 Backstage: Improper input validation in proxy-backend

Impact 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...

GHSA-CQ7V-RFGC-5C7V Backstage: Improper preservation of access restrictions during service credential delegation

Impact An external service credential configured with access restrictions e.g., read-only could bypass those restrictions by routing requests through plugin delegation paths. This could allow a restricted service to perform operations beyond its intended scope, including write operations on plugi...

GHSA-7649-WM97-W3J3 Backstage: Improper input validation in cloud storage URL readers

Impact 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. Patches Patched in @backstage/backend-defaults...

GHSA-PCMQ-25R3-5W9V Backstage: Inconsistent enforcement of allowed location types during catalog processing

Impact Under certain configurations, the catalog backend could process location types that were not intended to be allowed, potentially leading to unintended file access on the backend host. Patches Patched in @backstage/plugin-catalog-backend version 3.9.1 Workarounds No practical workarounds ar...

GHSA-QGVJ-QCF8-XQ73 Backstage: Improper URL validation in catalog entity placeholder resolution

Impact An authenticated Backstage user could craft a catalog entity with placeholder directives that reference resources outside the entity's source repository. Under certain configurations, this could allow access to data not intended to be available to the user. Patches Patched in...

GHSA-G2V8-7JHW-PP8P Backstage: Sensitive information exposure in Scaffolder

Impact An authenticated Backstage user who can read another user's Scaffolder task may receive internal execution data. In deployments where that data contains credentials for an external service, this may permit disclosure and unauthorized changes in that external service. Patches Patched in...

GHSA-MFVQ-X7VR-RGQG Backstage: Secret-derived values may be exposed in scaffolder task logs

Impact Deployments that configure sensitive scaffolder.defaultEnvironment.secrets and allow an attacker to create or modify Scaffolder templates are affected. A template author could cause secret-derived values used during template iteration to be persisted in task logs, exposing those values to...

GHSA-HMP2-4M7G-22CV Backstage: Scaffolder action input authorization bypass

Impact An authenticated user with access to affected Scaffolder templates could bypass configured action restrictions. Depending on integration credentials, this could grant unauthorized access to repositories and related source-control resources. Patches Patched in...

GHSA-XVGH-HMX8-9XXF Backstage: Improper task state validation in Scaffolder backend

Impact An authenticated user with permission to create and access Scaffolder tasks may, under specific timing and deployment conditions, affect files accessible to the Backstage backend. If backend application files are writable, the confidentiality, integrity, and availability of the backend may...

GHSA-7HFW-GRCM-CQM6 Backstage: Incorrect authorization in scaffolder task listing

Impact An authenticated internal user may be able to view metadata for scaffolder tasks outside the visibility intended by a deployment's permission policy. Stored task secrets are not included in the affected response, and no integrity or availability impact was identified. Patches Patched in...

GHSA-95P4-VV4G-JXXM Backstage may expose sensitive information in Scaffolder task failure events

Impact Under specific template and failure conditions, an authenticated user may be able to retrieve sensitive values from Scaffolder task events. This can expose backend-managed credentials used during task execution. Patches Patched in @backstage/plugin-scaffolder-backend version 4.1.0...

GHSA-4XVQ-3M68-H444 Backstage has sensitive information exposure in scaffolder task logs

Impact An authenticated user who can create and read scaffolder tasks may be able to observe sensitive values in task logs in deployments with restrictive action permissions and affected templates. Exploitation requires a denied action whose input contains such a value. Patches Patched in...

GHSA-VWP5-F99X-X3RQ Backstage has improper input validation in scaffolder task list ordering

Impact An authenticated Backstage user with permission to create and read relevant scaffolder tasks may be able to infer confidential task data under specific conditions. Successful exploitation requires retained task secrets, visibility of a target task, knowledge of the secret structure, and...

GHSA-P75X-JH7P-PPCX Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend

Impact 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. Patches Patched...

GHSA-CM77-CH27-6W6V Backstage has potential file exposure through local TechDocs publisher

Impact When using the local TechDocs publisher techdocs.publisher.type: 'local', it was possible for the documentation serving endpoint to follow filesystem references outside the intended documentation tree, potentially exposing host files to authenticated users. This is mitigated by the fact th...

GHSA-8W7Q-29MW-GF5C Backstage: Improper validation of MkDocs theme configuration in TechDocs

Impact When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in mkdocs.yml that cause arbitrary code execution during the documentation build process. Patches Patched in...

GHSA-F7V3-XHM6-W245 Backstage has improper input validation in TechDocs Markdown extension configuration

Impact An authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary. Depending on deployment configuration, this may expose sensitive backend-host data or internal network resources. Patches Patch...

GHSA-4WW4-68Q3-H7G5 Payload: Field-level write access bypass in Payload on MongoDB

Impact A vulnerability in field-level access control could allow an authenticated user to modify fields they are not permitted to change on documents they can otherwise update. You are affected if: Payload version 3.87.0 or a 4.0.0-canary release before 4.0.0-canary.20 using the MongoDB adapter...

GHSA-H6W7-QMCM-Q6XR RabbitMQ Java client: plaintext broker credentials leaked in exception message from ConnectionFactoryConfigurator.load()

Summary When property-file/Map-based ConnectionFactory setup fails while parsing the uri key, the library wraps the underlying exception with the raw connection string — including the plaintext username and password — baked verbatim into the new exception's message. Details...

GHSA-FWXR-J5W2-587M LiquidJS: ownPropertyOnly bypass for inherited array indices in first/last/join/reverse/slice/compact, `.first`/`.last`, negative index, and for-loop iteration

Summary LiquidJS’s ownPropertyOnly option is intended to prevent templates from reading inherited or prototype properties from scope data. With ownPropertyOnly: true, direct access such as: liquid a0 correctly blocks an inherited array index. However, the same inherited value is still disclosed...

GHSA-V76P-62QX-WWQ2 ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write

Summary When decoding a tiled TIFF with fax compression T4/T6/MH, DecodeTilesChunky allocates each tile buffer from TileWidth ceilTileWidthbpp/8TileLength bytes but constructs the fax decompressor with frame.Width: TiffDecompressorsFactory ignores the isTiled/tileWidth/tileHeight parameters...

GHSA-JJ3Q-CWQJ-842R ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp

Summary When decoding a fax-compressed strip TIFF Compression=3 / Group 3 1D, or Compression=2 / Modified Huffman, the CCITT decompressors write decoded runs through BitWriterUtils.WriteBits/WriteBit/WriteZeroBit, which advance and write bits via Unsafe.Add with read-modify-write semantics —...

GHSA-8PQF-F4M5-798G Twisted: IMAP wildcardToRegexp() ReDoS

Summary wildcardToRegexp in twisted/mail/imap4.py converts IMAP LIST/LSUB wildcard patterns to Python regular expressions. It substitutes the two IMAP wildcards → ?:.? and % → ?:?:^\/? but passes every other character through unchanged to re.compile. This means that an authenticated IMAP client...

GHSA-4F6C-2VVP-GW82 Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write

Description: Summary An IP spoofing vulnerability in the Model Context Protocol MCP configuration installation endpoint POST /api/v1/mcp/project/projectid/install allowed authenticated remote attackers to bypass the "local-only" access restriction. By sending a spoofed X-Forwarded-For: 127.0.0.1...

GHSA-6Q6J-F24J-P477 Ghost: Authorization Bypass in Comments Feature

Impact An input validation issue allowed members to access comments they were not authorized to access. Vulnerable versions This vulnerability is present in Ghost from v5.9.0 up to v6.44.1. Patches v6.44.1 contains a fix for this issue. How to update For self-hosters using Docker, find Docker's...

GHSA-354H-GMHV-MR9C Ghost: Server-Side Request Forgery in Webhook Trigger

Impact An SSRF vulnerability in the webhooks feature allowed staff users to probe internal hosts from the Ghost server. Vulnerable versions This vulnerability is present in Ghost from v1.18.0 up to v6.27.0. Patches v6.27.0 contains a fix for this issue. How to update For self-hosters using Docker...

GHSA-83RP-Q473-J88C Ghost: Path Traversal Vulnerability in Ghost ImageSize Service

Impact An input validation issue may have allowed staff users to access local files outside the intended data storage directories on the server. Vulnerable versions This vulnerability is present in Ghost from v6.14.0 up to v6.27.0. Patches v6.27.0 contains a fix for this issue. How to update For...

GHSA-4V53-57PG-C464 yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header

Summary LZ4BlockInputStream grows its compressed-input buffer to the attacker-controlled compressedLen value from the legacy LZ4Block stream header before reading any payload bytes. A header-only input can therefore trigger a near-2 GiB allocation and exhaust the JVM heap. Details In...

GHSA-6CX8-RJF8-PR8G yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError

Summary LZ4DecompressorWithLength.decompressbyte, int allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says 0x40000000 makes the JVM commit a gigabyte and can cause heap exhaustion. Details...

GHSA-W7X8-Q2GP-5CGG Flowise Prompt Injection to RCE and SSRF via CSV/Airtable Agent Python Validator Bypass

Summary Flowise = 3.1.2 CSV Agent and Airtable Agent nodes use a regex-based blocklist validatePythonCodeForDataFrame to sanitize LLM-generated Python code before execution in Pyodide. The validator has multiple structural bypasses that allow an attacker to exfiltrate all loaded data to an extern...

GHSA-9GVV-QJJ3-2P6G Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium

Flowise packages flowise and flowise-components in versions = 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and...

GHSA-FH39-C73X-5PJV Quasar Framework: Development TLS private keys are cached with overly permissive filesystem permissions

The @quasar/ssl-certificate development utility caches a combined PEM containing a generated private key and certificate without explicitly restricting its filesystem permissions. On systems with a typical process umask, the PEM can be readable by other local users. A local attacker with filesyst...

GHSA-R5MF-4R5X-Q78F Quasar Framework: SSR/SSG dev error page discloses the full shell environment and its </script> escape is bypassable

Summary The error page that Quasar CLI shows when an SSR or SSG render throws in development serializes every variable in process.env, every request header and every cookie into the HTTP response, and the dev server binds 0.0.0.0 by default. Any host that can reach the port therefore gets the...

GHSA-5M6H-8G35-P3M7 Quasar Framework: App Vite SSR and SSG nonce attributes are not safely constrained

Several @quasar/app-vite SSR and SSG renderer paths interpolate ssrContext.nonce directly into quoted HTML attributes. An application that derives or overrides the nonce using untrusted data can allow a quote to terminate the nonce attribute and inject additional attributes or markup into generat...

GHSA-VHHQ-M2GM-RWC9 Quasar Framework: App Vite SSG page output paths can escape the configured distribution directory

Summary During an SSG build, page definitions returned by getSsgPages can provide custom dir and filename values. The builder joined those values to build.distDir and wrote the generated page without verifying that the final destination remained inside the distribution directory. Details A page...

GHSA-Q9MQ-245R-4G93 Quasar Framework: App Vite build cleanup can recursively remove unsafe configured output directories

Summary @quasar/app-vite recursively removes build.distDir before producing build artifacts. The configured path was made absolute, but it was not checked before removal. A configuration mistake could therefore target the project root, user home directory, a filesystem root, or another directory...