GHSA-P223-2WR2-J562 Payload: Incomplete validation during the upload file lifecycle

Impact Under certain conditions, an authenticated user with permission to modify uploads could cause unintended files to be removed during file cleanup. This may result in data loss or service disruption. You are affected if: - You use Payload upload collections with local file storage. - Untrust...

GHSA-V5GF-VPJC-PC7W Payload: Unauthenticated account-lockout denial of service

Impact An unauthenticated attacker who knows an account’s email address or username could trigger Payload’s account lockout mechanism and prevent that user from signing in. You are affected if: Using an affected Payload version with an auth-enabled collection that uses local authentication and...

GHSA-7VG8-29QX-JGJ8 Payload: Client uploads could overwrite S3 objects

Impact An authenticated user could overwrite an existing S3 object belonging to another upload collection, bypassing that collection’s access controls and prior file validation. You are affected if ALL of these are true: - Client uploads are enabled for multiple collections that share an S3 bucke...

GHSA-9QPG-3CF8-W33X Payload: Uploaded XML files could execute same-origin JavaScript

Impact Under certain local upload configurations, an uploaded XML file and stylesheet could execute JavaScript in the Payload origin when a logged-in user opens the file. You are affected if: - You accept XML uploads accepted by default. Patches Users should upgrade Payload packages to = 3.90.0 o...

GHSA-R488-J9VJ-WX3Q Payload Form Builder has an RCE issue

Impact A vulnerability in @payloadcms/plugin-form-builder in versions = 3.90.0 or = 4.0.0-canary.34...

GHSA-F7HX-52Q9-HCRF Payload: Unauthorized update to collection documents

Impact An attacker can submit a request to a specific endpoint that permits collection documents to be updated regardless of access control and field level access control. You are affected if: - You are configuring orderable: true with any collection or join field. Patches In the patched version...

GHSA-66WR-7VMR-P5JQ Payload authentication token field handling issue

Impact Under certain field configurations, Payload could include unintended values in the authentication token issued at login. You are affected if: - You use an affected Payload version and have configured a custom field option that maps a field to a reserved authentication claim name. Patches...

GHSA-V3XR-G6P2-FVGV Ghost: Stored XSS via oEmbed Photo Responses

Impact Embedding a URL from an attacker-controlled website could result in untrusted scripts being stored in post content. These scripts could run in the Ghost editor, on the published site, and in newsletter emails, possibly resulting in compromise of a staff user's admin session. Vulnerable...

GHSA-347Q-26QQ-H2P6 Ghost: Stored XSS via Bookmark Card Images

Impact When creating a bookmark card, Ghost could store non-image files fetched from an external website as bookmark icons or thumbnails. This allowed any staff user, including Contributors, to host arbitrary HTML on the site's domain, possibly resulting in compromise of other staff users' admin...

GHSA-53VV-XM9F-MM82 Ghost: Password Hash Ordering Disclosure in Ghost Admin API

Impact Any staff-level user was able to determine the relative ordering of other staff users' hashed passwords. This does not directly disclose password hashes, and does not provide a practical path to recovering a password. Vulnerable versions This vulnerability is present in Ghost from v0.7.2 u...

GHSA-V6Q3-XQXM-6F5V Ghost: Invite Token Disclosure in Ghost Admin API

Impact Staff users with permission to view staff invites were able to discover the secret token of pending invites, including invites for roles with higher privileges than their own. This could allow a staff user to escalate their privileges by accepting a pending invite. Vulnerable versions This...

GHSA-M382-6JW4-FMP6 Ghost: Path Traversal via Locale Setting

Impact A vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to read JSON files outside of the active theme's directory, potentially exposing server configuration secrets. Vulnerable versions This vulnerability is present in Ghost from v1.20.0 up to...

GHSA-JJ74-HC2Q-XRVM Ghost: Remote Code Execution via Theme Translation Files

Impact A vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to execute arbitrary code on the server via a crafted theme. Vulnerable versions This vulnerability is present in Ghost from v6.10.3 up to v6.64.0. Patches v6.64.0 contains a fix for this issu...

GHSA-4PVX-FWJJ-8GPC Ghost: Editors Could Promote Staff Users to Their Own Role

Impact Staff users with the Editor or Super Editor role were able to assign their own role to Author and Contributor users, despite not having permission to assign that role. Vulnerable versions This vulnerability is present in Ghost from v0.5.0 up to v6.64.0. Patches v6.64.0 contains a fix for...

GHSA-GFJP-2P8F-94QV Ghost: Stored XSS via File Uploads on Local Storage

Impact Ghost restricts the content type that uploaded files are served with, to prevent browsers from executing them. On sites using the default local storage adapter, this restriction was not applied, so files uploaded by any staff user were served with a content type derived from their file...

GHSA-7822-RCF6-97FX RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers

Summary A single AMQP message with malformed UTF-8 in a shortstr property for example correlation-id can permanently disable a Java client RPC consumer. The client decodes malformed bytes into U+FFFD replacement characters. Each of those re-encodes to 3 bytes, so a 255-byte property becomes 765...

GHSA-Q333-F498-W2X7 Backstage: Insufficient audience validation in the Cloudflare Access auth provider

Impact The Cloudflare Access auth provider verifies a token's signature and team issuer, but affected versions do not verify that the token was issued for the Backstage application. A user holding a valid token for another Access application in the same Cloudflare Zero Trust team may therefore be...

GHSA-Q38J-6VCM-2F5M Backstage: Improper validation of MkDocs plugin configuration in TechDocs

Impact An authenticated attacker with control over a TechDocs source repository could cause a documentation build to retrieve and publish data from network locations reachable by the build environment. Exposure depends on deployment topology, build mode, and target endpoint protections. Modern...

GHSA-472H-9C5J-PRRR Backstage: Inconsistent credential enforcement for overlapping proxy routes

Impact An operator can configure overlapping proxy paths with different credential requirements. When a parent path permits unauthenticated access and a nested path requires credentials, the parent exemption can also cover requests handled by the nested proxy. An unauthenticated caller may...

GHSA-C36C-CF6R-GHGJ Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates

Impact Deployments using event-driven updates in the Bitbucket Server catalog provider may ingest catalog locations from repositories that are excluded by the provider's configured project, repository, or archived-repository filters. An authenticated Bitbucket Server user who can push to a...

GHSA-G734-FHP4-7MFP Backstage: Improper input validation in Sentry scaffolder actions

Impact An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. Patches Upgrade...

GHSA-JJFR-HCJ7-QF5W ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer

Summary The TIFF CCITT Group 4 T6 encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default TiffEncoder terminates the process with an unhandled exception. Affected package and versions - Package:...

GHSA-4Q3P-RJ5X-XV7P ImageSharp: EXR ZIP decoder can expose stale allocator data after a short inflate

Summary A crafted ZIP-compressed OpenEXR image can return stale memory from a prior ImageSharp operation as decoded pixels. The ZIP decoder accepts a non-empty inflate result shorter than the EXR block's required size, then the EXR decoder reads the full expected block. This is a process-local,...

GHSA-FFP7-56PQ-64MR ImageSharp: ICC LUT16 output channel count can write beyond Vector4

Summary When ICC conversion is enabled, a malformed embedded ICC LUT16 profile with more than four output channels can corrupt memory during ImageSharp color conversion. The ICC parser accepts up to 15 CLUT output channels, while the conversion implementation stores intermediate values in Vector4...

GHSA-WMXV-XPHR-5C9G ImageSharp: BigTIFF IFD count can keep a decoder thread in a non-progressing loop

Summary SixLabors.ImageSharp 4.1.1 can spend an attacker-controlled duration decoding a small malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader iterates once per declared entry, but when fewer than 20 bytes remain for an entry, the entry read returns without advancing. A...

GHSA-J9GM-C75J-XC9Q ImageSharp: TIFF CCITT T4 encoder can write past its compressed output buffer

Summary ImageSharp's TIFF CCITT Group 3 T4 encoder can write beyond its allocated compressed-data buffer when encoding narrow 1-bit images. The unchecked writes can corrupt process memory and terminate the process. This report concerns only the T4 CcittGroup3Fax encoder path. It replaces the prio...

GHSA-J3P4-WP97-RPH4 ImageSharp: HistogramEqualization uses an unvalidated luminance as an unchecked histogram index

Summary SixLabors.ImageSharp can terminate a process when an application decodes an attacker-supplied 32-bit floating-point TIFF as Image and applies HistogramEqualization. An IEEE positive-infinity TIFF sample reaches a non-finite or otherwise out-of-range HalfVector4 component, depending on the...

GHSA-GWG2-R3HJ-4W44 ImageSharp: ICC CLUT parsing allocates from unvalidated channel and grid dimensions

Summary A malformed embedded ICC profile can make ImageSharp allocate memory from attacker-controlled CLUT channel and grid dimensions before verifying that the declared CLUT values are present. In published v1 through v3 packages, the public lazy ICC parser allocates approximately 115 MB from th...

GHSA-5JJJ-9XC3-RM56 Hydra: Optuna custom_search_space can resolve and execute untrusted callables via get_method

Summary hydra-optuna-sweeper accepted a configuration-controlled dotted path in hydra.sweeper.customsearchspace, resolved it with the lower-level hydra.utils.getmethod API, and later invoked the returned callable. Hydra's object-lookup helpers intentionally trust their input and do not apply the...

GHSA-MWJ6-RFH8-7QF4 Hydra: Mutable instantiate policy sets allow target blocklist bypass

Summary Hydra's legacy instantiate target blocklists and related execution-policy collections are stored in mutable module-level state. Because locate can resolve attributes on imported objects, a configuration can resolve a mutation method such as .discard, modify the active policy, and then...

GHSA-XM5Q-P7W3-X6CP Backstage: Explicit negative email verification can be ignored during shared OAuth profile normalization

Impact Several Passport-based authentication providers use shared OAuth profile normalization from @backstage/plugin-auth-node. Affected versions may pass an email to email-based sign-in resolvers even when verification metadata supplied for that same address is explicitly negative. The...

GHSA-89VP-X45C-52CQ Quasar Framework: DOM Clobbering in Quasar openURL() SafariViewController Integration Causes Client-Side Denial of Service

Summary A DOM Clobbering vulnerability exists in Quasar's openURL utility when handling the iOS SafariViewController bridge. The vulnerable implementation only checks whether window.SafariViewController exists before invoking it as a native bridge object. An attacker who can inject HTML content...

GHSA-C85P-XXJJ-2R75 Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows

Summary ColumnNameToNumber lib.go:220-237 accumulates the bijective base-26 value of a column name in an int64 with only an upper-bound check col MaxColumns applied after the loop and no overflow detection. A 14-letter column name whose true value is 3·2⁶⁴ — e.g. VGWQHXLSDVIKWV — wraps to col = 0...

GHSA-8JJQ-8J9W-M2V6 Excelize: RIGHT() on supplementary-plane text slices with a negative index and panics

leftRight calc.go:14236 tests the length with countUTF16String, which counts a rune above U+FFFF as 2. The RIGHT branch on 14241 then slices runetext at utf8.RuneCountInStringtext-numChars, which counts it as 1. For text with N such runes the two measures are 2N and N, so any numChars between the...

GHSA-JRFJ-FHJ2-JJVM Excelize: Unbounded spinCount in agile decryption burns CPU during OpenFile

Opening a file whose first eight bytes are the OLE magic number sends excelize down the decryption path whether or not the caller set a password, or supports encrypted workbooks at all. openReaderAt excelize.go:198-215 branches on the header alone, and agileDecrypt calls convertPasswdToKey before...

GHSA-G27H-8QHM-6PFF Excelize: Panic in cellInRange on a worksheet with an empty mergeCell ref

Summary A worksheet containing makes mergeCellsParser leave the cached rectangle empty, and cellInRange then indexes that empty slice without a length check. Every non-streaming cell API panics with index out of range 0 with length 0 on the first cell read after opening the file. Where it is...

GHSA-8MCQ-6WMR-JRJV Excelize: a row whose earlier cell has a higher column reference than its last cell panics index out of range on almost every worksheet read API

Affected versions and vulnerable location - Confirmed at ae2113b current HEAD. - Sink: rows.go:967 ws.SheetData.RowrowIdx.CcolNum-1 = colData inside checkRow. - checkRow computes lastCol from the column of the last cell in document order rows.go:940, allocates targetList of that length, then...

GHSA-RXCJ-4PJ5-74GR Excelize: GetConditionalFormats indexes conditional-formatting rule sub-elements with no length or nil check

Summary GetConditionalFormats reads sub-elements of a straight out of xl/worksheets/sheetN.xml and indexes them without checking length, and in one case without checking for nil. Three rule types are affected: cellIs, dataBar and colorScale. A workbook with a rule that is missing a child a real...

GHSA-FQ3V-74GV-27GM Excelize: Unbounded <col max> attribute is loaded with no MaxColumns check and expanded per-column by flatCols(), so any column mutator hangs or OOMs the process

Summary The max attribute of a element in xl/worksheets/sheetN.xml is read verbatim on open with no check against MaxColumns, and flatCols then walks Min..Max doing a deepcopy.Copy and append per iteration. Executed: max="300000", only about 18x past the real 16384 limit, cost 46.2 s of CPU and 1...

GHSA-FW94-4WWP-W8PW Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/OpenReader

Summary A Zip64 uncompressed-size of 2^63 casts to a negative int64 that bypasses the unzip-size guard and reaches makebyte, 0, negativeCap A Zip64 uncompressed-size in the range 2^63, 2^64 casts to a negative int64 in zip.File.FileInfo.Size, and ReadZipReader does signed arithmetic on that value...

GHSA-5H23-36RV-PM65 Excelize: GetStyle panics on a negative fillId, borderId or fontId in styles.xml

Summary File.GetStyle indexes the fill, border and font tables with values taken straight out of xl/styles.xml, and the conditions gating those lookups check only the upper bound. A workbook whose cellXfs entry carries fillId="-1", borderId="-1" or fontId="-1" reaches a negative slice index and...

GHSA-6G59-GM2V-QHVQ PraisonAI: Crawl4AI/Chromium backend is also affected by the `web_crawl` SSRF validation bypass

Summary The DNS-rebinding / redirect SSRF bypass in PRAI-05 is not limited to the httpx/urllib backend. When crawl4ai headless Chromium via Playwright is installed, webcrawl auto-selects provider=crawl4ai, and the headless browser re-resolves DNS and follows redirects on its own — with no...

GHSA-R543-Q48M-4C9J WeasyPrint: EPS images reach the Ghostscript interpreter resulting in RCE

Summary This was found during a pentest, funded by the NLNnet foundation, conducted by Stefan Vink from Radically Open Security and the only High issue found. WeasyPrint passes fetched image bytes directly to Pillow's generic format dispatcher without restricting the input format. When Ghostscrip...

GHSA-P279-5WCV-45VQ Kunstmaan CMS: MediaBundle extension blacklist bypass allows authenticated administrators to upload executable PHP files leading to remote code execution

Summary The MediaBundle blocks dangerous upload extensions with a blacklist that was matched case-sensitively, while the stored filename was lowercased afterwards. A file uploaded as webshell.pHp therefore bypassed the blacklist and was written to the web-accessible upload directory as...

GHSA-X3MG-Q38V-M562 Ghost: Authorization Issue Allowed Author Role to Delete any Post

Impact Staff with the Author role could delete posts and pages that they did not author. Vulnerable versions This vulnerability is present in Ghost from v5.81.0 up to v6.60.0. Patches v6.60.0 contains a fix for this issue. How to update For self-hosters using Docker, find Docker's official Ghost...

GHSA-PQ68-RVW4-XP4R vm2 contains a sandbox escape vulnerability

vm2 NodeVM versions before 3.12.1 contain a sandbox escape vulnerability where the DANGEROUSBUILTINS denylist omits childprocess despite blocking other host-spawning modules. Attackers can require childprocess and execute arbitrary commands on the host system when NodeVM is configured with...

GHSA-C3WX-C55W-PXJQ Hydra logging configuration permits unsafe callable resolution

Summary Hydra passed its Python logging configuration to logging.config.dictConfig. Python's logging configurator can resolve and invoke importable classes and factories named by configuration, including handler class values and formatter, filter, handler, queue, and listener factories. This...

GHSA-RQX7-P7VV-W7HR Hydra instantiate target blacklist bypasses permit code execution

Summary Hydra's instantiate API resolves and invokes Python callables named by the target field in configuration. The target blacklist introduced for CVE-2026-68508 was incomplete. Representative bypasses included execution wrappers such as timeit.timeit, executable deserialization through...

GHSA-JG6Q-3QFH-R9F8 mppx-condition-gate: Free-access path grants on a self-declared wallet without proving control

Impact Both packages wrap an mppx payment method so that a wallet meeting on-chain conditions is granted free access instead of being charged. The free-access path reads the payer address from credential.source — a client-supplied DID in the payment credential — asks InsumerAPI whether that addre...

GHSA-4488-J8VJ-VQQV Backstage: Remote code execution via crafted markdown_extensions in TechDocs mkdocs.yml

Impact An authenticated user who can register catalog entities can provide a crafted mkdocs.yml causing arbitrary OS command execution on the TechDocs build host when the docs are built. Patches Patched in @backstage/plugin-techdocs-node, version 1.15.4. Workarounds If you cannot upgrade...