MessagePack-CSharp: InterfaceLookupFormatter bypasses collision-resistant comparer settings

Summary InterfaceLookupFormatter constructs an internal Dictionary with the default equality comparer instead of the security-aware comparer supplied by options.Security.GetEqualityComparer. Other hash-based collection formatters use the security-aware comparer when...

MessagePack-CSharp: Multi-dimensional array formatters allocate from unchecked dimensions

Summary MessagePack-CSharp's multi-dimensional array formatters read dimension lengths directly from the payload and allocate T,, T,,, or T,,, before validating that the dimension product matches the encoded element count. The formatter reads a guarded element array header, but allocation of the...

MessagePack-CSharp: Unity unsafe blit formatter allocates from unbounded byte length

Summary UnsafeBlitFormatterBase.Deserialize reads an attacker-controlled byteLength from an extension payload and allocates an array based on that value before validating it against the extension header length or remaining payload bytes. The outer extension header is bounded by available input, b...

MessagePack-CSharp: DynamicUnionResolver-generated deserializers miss depth enforcement

Summary Runtime-generated union deserializers emitted by DynamicUnionResolver do not call MessagePackSecurity.DepthStepref reader and do not decrement reader.Depth around recursive deserialization and skip paths. This means union deserialization does not consistently participate in the maximum...

MessagePack-CSharp: JSON conversion APIs can recurse without consistent depth enforcement

Summary MessagePack-CSharp's JSON conversion helpers contain multiple recursion paths that do not consistently enforce a depth limit. These paths are in the JSON conversion component rather than normal typed MessagePack deserialization. Three related issues are covered by this advisory: 1...

MessagePack-CSharp: ExpandoObject formatter can perform quadratic insertion work on untrusted maps

Summary ExpandoObjectFormatter.Deserialize populates System.Dynamic.ExpandoObject by calling IDictionary.Add for each map entry. ExpandoObject internally maintains member names in array-like structures, so inserting many distinct keys can require repeated linear scans and array copies. For large...

MessagePack-CSharp: LZ4 decompression allocates from unbounded declared output lengths

Summary When MessagePack-CSharp decompresses Lz4Block or Lz4BlockArray payloads, it reads declared uncompressed lengths from the wire and allocates output buffers based on those lengths before validating that the compressed data is valid or that the declared expansion is reasonable. A small paylo...

MessagePack-CSharp: ASP.NET Core MessagePackInputFormatter defaults to TrustedData for HTTP request bodies

Summary The parameterless MessagePackInputFormatter constructor uses default serializer options, which resolve to MessagePackSerializerOptions.Standard with MessagePackSecurity.TrustedData. The formatter is designed for ASP.NET Core MVC request bodies, which commonly cross an HTTP trust boundary...

Lemur has an authorization bypass in StrictRolePermission / AuthorityCreatorPermission

Summary StrictRolePermission and AuthorityCreatorPermission in lemur/auth/permissions.py call flaskprincipal.Permission.init with zero Needs when their config flags are unset. Both flags defaulted to False in code prior to the fix, so this was the state of any Lemur install that hadn't explicitly...

MessagePack-CSharp: MessagePackReader.Skip can recurse without enforcing maximum object graph depth

Summary MessagePackReader.TrySkip recursively descends into nested arrays and maps without incrementing the reader depth or calling the configured depth checks. This bypasses MessagePackSecurity.MaximumObjectGraphDepth, the library's documented protection against deeply nested object graphs. Many...

Filament: Multi-factor authentication (app) recovery codes can still be used multiple times via concurrent submission

A flaw in the handling of recovery codes for app-based multi-factor authentication allows the same recovery code to be reused via concurrent submission. This issue does not affect email-based MFA. It also only applies when recovery codes are enabled. If an attacker gains access to both the user's...

opentelemetry_sdk has unbounded memory allocation in W3C Baggage propagation

Summary BaggagePropagator::extractwithcontext in opentelemetrysdk did not enforce the W3C Baggage size limits before parsing an inbound baggage header. A large attacker-controlled header could cause unnecessary CPU work and short-lived heap allocations while parsing entries that would later be...

MessagePack-CSharp: Denial of service vulnerabilities can swamp the CPU or crash the process with stack and heap overflows

Summary MessagePackReader.ReadDateTime can allocate stack memory based on an attacker-controlled MessagePack extension length. In the slow path for timestamp extension parsing, the computed tokenSize includes the extension body length from the wire and is used in a stackalloc operation before the...

amazon-braket-sdk vulnerable to Insecure Deserialization via pickle.loads()

Summary Amazon Braket SDK is an open-source Python library for interacting with the Amazon Braket quantum computing service, including managing hybrid quantum jobs and retrieving job results. An issue exists where, under certain circumstances, a remote authenticated user with S3 write access to a...

LangGraph SDK has unsafe URL path construction

Summary langgraph-sdk constructs HTTP request paths for resource operations by interpolating caller-supplied identifier values into URL templates. Without sanitization of those values, identifiers that contain characters with special meaning in URL paths could cause the resulting request to addre...

LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading

Summary LangGraph's JsonPlusSerializer can reconstruct Python objects from JSON checkpoint payloads. Under conditions where someone could modify checkpoint bytes at rest in the backing store, the deserialization path could reconstruct objects beyond what the application expects, which could in tu...

chi Has an IP Spoofing Vulnerability in `middleware.RealIP`

Summary The RealIP middleware in go-chi/chi is vulnerable to IP spoofing because it blindly trusts the first leftmost element of the X-Forwarded-For HTTP header. This allows a remote attacker to bypass IP-based access control lists ACLs and rate-limiting mechanisms by providing a spoofed IP addre...

chi's RealIP Middleware allows IP spoofing via unvalidated X-Forwarded-For header

Summary realip middleware in go-chi/chi trusts headers like x-forwarded-for without checking them, so attackers can fake their ip and bypass rate limits or access controls Details the vuln is in middleware/realip.go , the realIP function pulls IPs straight from client headers and replaces...

chi Middleware Vulnerable to Potential IP Spoofing via `X-Forwarded-For` Header in `Request.RemoteAddr` Resolution

Summary The vulnerability allows the Request.RemoteAddr to be spoofed when determining the request source IP via the X-Forwarded-For header. This could result in misidentification of the request source and potentially compromise access control and logging integrity. Details Currently, the RealIP...

FileBrowser: Missing Rate Limiting on Authentication Endpoint Enables Brute Force Attacks

Summary The /api/auth/login endpoint does not implement rate limiting, account lockout, or progressive backoff for repeated authentication failures. As a result, an attacker can perform unlimited login attempts against the endpoint. When combined with the username enumeration timing vulnerability...

fixurjavainstall: Previous Fuji versions can accidentally wipe `/usr/share/man/man8`

Impact Affects: Anyone who generates the UNIX man pages in Fuji = 0.8.0 build with the dev crate feature. Consequences: /usr/share/man/man8 may be entirely removed & re-created without any of the previous entries. Patches At the time of writing, no new version has been released on crates.io, due ...

neotoma has tenant isolation gap in relationship query endpoints

Summary The /listrelationships and /retrievegraphneighborhood endpoints call getAuthenticatedUserId confirming a valid session exists but do not pass the resolved user ID into the Supabase query as an .eq"userid", userId filter. As a result, queries return rows from all users rather than scoping ...

justhtml: to_markdown() code-span blank-line breakout enables XSS

justhtml: tomarkdown code-span blank-line breakout enables XSS Summary In justhtml 0.9.0 through 1.21.0, tomarkdown renders text and text inside a link as an inline Markdown code span whose only protection is backtick-fence length. A blank line \n\n in that text terminates the inline span in any...

i18next-fs-backend vulnerable to prototype pollution via crafted missing-key string

Impact i18next-fs-backend ≤ 2.6.5, when used to persist missing translation keys e.g. via i18next-http-middleware's missingKeyHandler exposed to untrusted input, is vulnerable to prototype pollution via crafted missing-key strings. Backend.writeFile splits each queued missing-key string on the...

i18next-http-middleware: MissingKeyHandler does not reject keys whose segments contain prototype-polluting names

Impact i18next-http-middleware ≤ 3.9.6's missingKeyHandler blocked the literal request-body keys proto, constructor, and prototype added in 3.9.3, see GHSA-5fgg-jcpf-8jjw, but did not reject dotted variants such as "proto.polluted". Downstream backends that split the missing-key string on a...

OpenAM: Unauthenticated Authentication Bypass via RADIUS Spoofing

Summary Description An Improper Verification of Cryptographic Signature CWE-347 issue in OpenAM's RADIUS authentication module allows an unauthenticated network attacker to spoof an Access-Accept response and obtain an OpenAM session for any RADIUS username, without knowing the configured shared...

OpenAM Arbitrary OAuth Token Minting via Push Registration

Summary Description An Authorization Bypass Through User-Controlled Key CWE-639 exists in OpenAM's stateful OAuth2 token-read path. Under certain conditions, this may allow an attacker to forge OAuth2 bearer tokens and OIDC ID tokens with arbitrary subject, client, realm, and scope. This affects...

@anthropic-ai/claude-code has an Insecure Temporary File in /copy Command that Enables Response Disclosure and Symlink-Based File Write

The Claude Code /copy command wrote responses to a hardcoded, predictable path /tmp/claude/response.md without UID isolation, randomness, or symlink protection. The file was created world-readable 0644 in a world-traversable directory 0755, allowing any local user to read a privileged user's Clau...

OpenAM has Unsafe Java Deserialization via SNS

Summary Description A Deserialization of Untrusted Data CWE-502 issue exists in OpenAM's Push Notification SNS callback resource. The REST route that handles SNS push messages is mounted with anonymous access and, when a supplied message identifier has expired from the in-memory dispatcher, falls...

Angular's deprecated package has a Cross-Site Scripting issue

A flaw in AngularJS' Strict Contextual Escaping SCE logic allows bypassing certain SCE policies for resource URLs and can lead to arbitrary JavaScript execution within the context of the victim's browser session. SCE's purpose is to ensure that only trusted or safe values are used in certain...

OliveTin has Unvalidated `ot_`-prefixed Arguments that Bypass Input Filtering

Description The filterToDefinedArgumentsOnly function in the executor is intended to discard any arguments not explicitly defined in the action's configuration. However, a special case allows any argument whose name starts with ot to bypass this filter. While two system arguments...

OliveTin: ValidateArgumentType API Endpoint's Missing Authentication Allows Action and Argument Enumeration

Summary The ValidateArgumentType RPC endpoint in service/internal/api/api.go does not perform any authentication or authorization checks. Unlike all other data-returning API endpoints, it does not call auth.UserFromApiCall or checkDashboardAccess. When AuthRequireGuestsToLogin is enabled the...

OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination

Summary OliveTin's template engine uses a single shared text/template.Template instance tpl package-level variable in service/internal/tpl/templates.go across all goroutines. Every action execution calls tpl.Parsesource followed by t.Execute on this shared instance with no synchronization. When t...

OpenAM Pre-auth User Profile Tampering via Anonymous SOAP Authn in Liberty IDPP/Discovery Endpoints

Summary Description An Improper Authorization CWE-285 issue in OpenAM's Liberty Web Services SOAP receiver allows an unauthenticated remote attacker to write persistent entries into the Liberty Discovery store on any user's LDAP entry, and into a shared root-realm Discovery branch. This impacts...

OpenAM: Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage

Summary Description A deserialization of untrusted data vulnerability CWE-502 exists in OpenAM's WebAuthn authentication module. Under certain conditions, this may allow an attacker to achieve arbitrary code execution in the context of the application server. This affects OpenAM Community Edition...

Snipe-IT API Vulnerable to Cross-Tenant Accessory Injection

Impact A cross-tenant data injection vulnerability was identified in the Snipe-IT Accessories API when Full Multiple Companies Support FMCS is enabled. A low-privileged authenticated user belonging to one company can create an accessory record under another company by supplying a foreign companyi...

Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL

Impact Snipe-IT S3 signature image retrieval lacks authorization before temporary URL. On S3-backed deployments, authenticated users who know a signature filename can obtain a 5-minute signed S3 URL because the S3 branch returns before the authorize call used by the local-file branch. Key evidenc...

Snipe-IT has Improper Authorization in File Deletion (IDOR)

Impact A vulnerability was identified in Snipe-IT v8.4.0 build 21280-g91a95dbc6 that allows any authenticated user with generic asset edit permissions to delete files attached to any asset in the system, regardless of ownership or company assignment. This constitutes an Insecure Direct Object...

Snipe-IT Vulnerable to Privilege Escalation via Missing admin Permission Check in User Creation

Impact The store method in both the web and API UsersController only strips the superuser permission when a non-superuser creates a user. It does not strip the admin permission. This allows any authenticated user with the users.create permission to create a new user with full admin privileges. Th...

Snipe-IT has Multi-Tenancy Bypass via Bulk Asset Update

Impact The BulkAssetsController::update method accepts companyid directly from user input without calling Company::getIdForCurrentUser, the standard company-scoping function used by every other controller in the codebase. A non-superadmin user can move assets across company boundaries, breaking...

Snipe-IT has a 2FA reset privilege bypass

Impact A user who can edit other users could reset a superadmin's 2FA. Patches Patched in 8.5.0...

Snipe-IT Vulnerable to User Account Escalation via CSV Import

Impact The CSV user import in update mode bypasses user-edit authorization. A user with only the import permission can overwrite any non-admin user's email by uploading a CSV, then trigger a password reset to take over the account. UserImporter.php checks the canEditAuthFields gate and tries to...

Flask-Security has an Open Redirect issue

Open Redirect in Flask-Security Summary flasksecurity.utils.validateredirecturl can allow an attacker-controlled redirect URL when subdomain redirects are enabled. The bypass uses a backslash inside the URL authority/host: text http://evil.com.whitelist.com http://evil.com%5C.whitelist.com...

Snipe-IT's TOTP is Brute-Forceable Due to Missing Rate Limiting on `POST /two-factor`

Impact POST /two-factor had no rate limiting, lockout, or attempt counter. An attacker with valid credentials can submit unlimited TOTP guesses. The TOTP implementation accepts the current code plus one step on either side config/google2fa.php window=1, so at any instant 3 of 1,000,000 codes are...

phpMyFAQ: Missing userHasPermission() in 4 API write endpoints (CVE-2026-24421 Incomplete Fix)

Missing Authorization in API CategoryController — CVE-2026-24421 fixed BackupController by adding userHasPermissionPermissionType::BACKUP. The same fix was NOT applied to 4 other write endpoints in the public API. All 4 only call hasValidToken shared API key but never call userHasPermission,...

Snipe-IT: Bulk editing users allowed `ldap_import` and `activated_in` bulk editing users

Impact The vulnerability allows a non-admin user holding only the granular users.edit permission to lock every admin out of the instance by editing the activated flag which determines whether or not a user can login and the ldapimport flag, which determines whether or not the user can request a...

OpenTofu: Provider cache installation follows root-module-controlled package directory symlink and writes outside the working tree

Summary If a symlink already exists under the .terraform/providers directory where a provider package needs to be installed, tofu init would follow that symlink and install the new package content into it. If an attacker can coerce an operator into running tofu init in a directory whose contents...

Filament: Unauthenticated temporary file upload on auth pages

Any schema can contain a file upload form field, so Filament applies Livewire's WithFileUploads trait to the Livewire component the schema is embedded in. However, some schemas, such as the panel login form, do not require file uploads, and exposing unauthenticated temporary file uploads on these...

opentelemetry-ebpf-profiler: Unprivileged process can trigger a denial of service on the ebpf-profiler agent

Summary An unprivileged process can easily trigger the processPIDEvents goroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in the openat2 syscall forever and the profiler can no longer work properly, it is a denial of servic...

Snipe-IT Vulnerable to Privilege Escalation for self via API Permissions Assignment

Impact A user with only users.edit AND api permissions can send a PATCH to /api/v1/users/theirownid and grant themselves any permission except admin and superuser — for example assets.view, assets.create, reports.view, import, etc. Patches Patched in...