Weakness (CWE)
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
How to prevent it (8 mitigations)
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Architecture and Design
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
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Architecture and Design
Use thread-safe capabilities such as the data access abstraction in Spring.
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Architecture and Design
Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
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Implementation
When using multithreading and operating on shared variables, only use thread-safe functions.
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Implementation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
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Implementation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
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Implementation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
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Implementation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Source: MITRE CWE-362
79 results · Clear filters · Feed
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Low 3.7
GemBooking < 1.7.1 - Unauthenticated Team Member Double-Booking via Cross-Object Race Condition
The GemBooking WordPress plugin before 1.7.1 does not serialise concurrent booking requests per team member, allowing unauthenticated users to create overlapping confirmed bookings for the same team member across different bookable items by sending simultaneo…
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Low 3.7
YITH WooCommerce Gift Cards < 4.38.1 - Unauthenticated Gift Card Balance Double-Spending via Race Condition
The YITH WooCommerce Gift Cards WordPress plugin before 4.38.1 does not lock or atomically update a gift card's balance when it is redeemed at checkout, allowing an attacker who holds a gift card code to spend more than its funded value by submitting multiple…
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Low 3.7
Bagisto before 2.3.16 and 2.4.x before 2.4.1 Race Condition in Coupon Usage Accounting
Bagisto before 2.3.16 and 2.4.x before 2.4.1 contains a race condition vulnerability in manageCartRule() that allows attackers to redeem single-use coupons multiple times. Attackers can submit concurrent order requests to the onepage orders checkout endpoint,…
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Low 2.5
A Use-After-Free (UAF) vulnerability exists in the EVS HAL, allowing a privileged client to free a `buffer_handle_t` wh…
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Low 3.7
@fastify/session vulnerable to session revocation bypass via a logout race condition
@fastify/session is a session plugin for Fastify. In all releases before 11.1.6, with the default rolling session behavior, a request that restored a session before a logout could save its own copy after another request had completed the session destroy call,…
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Low 3.1
A race condition was addressed with improved locking. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2,…
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Low 3.7
WordPress Photo Reviews for WooCommerce plugin <= 1.2.31 - Race Condition vulnerability
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in VillaTheme Photo Reviews for WooCommerce woo-photo-reviews allows Leveraging Race Conditions.This issue affects Photo Reviews for WooCommerce: from n/…
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Low 3.7
Cross-session AES key confusion in the Espressif ESP32 hardware crypto driver
The Espressif AES driver drivers/crypto/crypto_esp32_aes.c advertises a multi-session cipher API — it hands out up to CONFIG_ESP32_CRYPTO_AES_SESSIONS_MAX (default 4) independent sessions, each carrying its own key and direction. The AES peripheral, however, …
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Low 3.1
MacCMS v10 through 2026.1000.4056 Race Condition via Card Redemption
MacCMS v10 through 2026.1000.4056 contains a race condition vulnerability in Card::useData() that allows authenticated members to redeem one recharge card multiple times via the user/buy endpoint. Attackers can send many concurrent flag=card requests that pas…
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Low 3.7
NocoDB Registration users.service.ts race condition
A vulnerability was identified in NocoDB up to 2026.08.0. This issue affects some unknown processing of the file users.service.ts of the component Registration. Such manipulation leads to race condition. The attack may be performed from remote. The attack req…
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Low 3.7
Traefik before 2.11.58 and 3.7.14 Race Condition in NTLM/Kerberos Round Tripper
Traefik 2.11.x before 2.11.58 and 3.x before 3.7.14 contains a race condition in NTLM and Kerberos (Negotiate) backend authentication, where the per-connection sticky round tripper slot is read and written without synchronization. Remote attackers can send co…
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Low 3.7
Better Auth drizzle-adapter 1.6.17 before 1.7.7 Rate Limit Bypass via Race Condition
Better Auth @better-auth/drizzle-adapter and better-auth from 1.6.17 before 1.7.7, and @better-auth/kysely-adapter from 1.6.17 before 1.7.0, contain a race condition in database-backed rate limiting on PostgreSQL where the limit check is not atomic with the c…
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Low 3.1
macrozheng mall Coupon Redemption generateOrder race condition
A security vulnerability has been detected in macrozheng mall up to 1.0.3. This issue affects some unknown processing of the file /order/generateOrder of the component Coupon Redemption. Such manipulation of the argument couponId leads to race condition. The …
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Low 3.7
WordPress Events Manager plugin <= 7.4.7 - Race Condition vulnerability
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Pixelite Events Manager events-manager allows Leveraging Race Conditions.This issue affects Events Manager: from n/a through 7.4.7.
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Low 2.5
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Heap Buffer Overflow via Concurrent Security Policy Access
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 lacks proper synchronization when the security policy is accessed, so simultaneous reads and writes of the policy by multiple threads trigger a race condition that causes a heap buffer over-write. An attack…
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Low 2.1
A race condition and thread-safety vulnerability exists in the web management daemon of Brocade Fabric OS versions befo…
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Low 2.1
A race condition vulnerability exists in the request processing logic of the REST management interface on Brocade Fabri…
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Low 2.0
Wasmtime: Preemption and traps during bulk operations enable breaking internal VM state
Wasmtime is a runtime for WebAssembly. From 46.0.0 until 46.0.2 and 47.0.3, fuel and epoch preemption checks inside bulk operations including memory.copy, table.grow, and array.copy can expose invalid intermediate state when an embedder mutates a Store in Sto…
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Low 3.7
WordPress Booking Calendar plugin <= 11.8.4 - Race Condition vulnerability
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in WPdevelop Booking Calendar booking allows Leveraging Race Conditions.This issue affects Booking Calendar: from n/a through 11.8.4.
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Low 3.1
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under a race condition, the MCP search tool's shared state handling could have caused search results to be returned …
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Low 2.2
snipe-it before 8.7.0 Race Condition in Asset Checkout
Snipe-IT 8.6.3 and earlier (and develop pre-release commits prior to the fix) contain a race condition in the asset checkout paths. Api\AssetsController::checkout() and Assets\AssetCheckoutController::store() call Asset::availableForCheckout() outside the mut…
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Low 3.7
ramon-victor freegpt-webui Jailbreak Mode config.py getJailbreak race condition
A security flaw has been discovered in ramon-victor freegpt-webui up to 098db3dfeb41555c2ca9269df0f13e10ec1c35dc. This issue affects the function getJailbreak of the file server/config.py of the component Jailbreak Mode. The manipulation results in race condi…
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Low 3.1
I3C IBI work-node free-list data race between ISR and workqueue thread
The I3C IBI subsystem in drivers/i3c/i3c_ibi_workq.c hands out statically-allocated work nodes through a free-list i3c_ibi_work_nodes_free implemented as a plain sys_slist_t, which provides no synchronization. The allocation helpers (i3c_ibi_work_enqueue, i3c…
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Low 3.7
multer vulnerable to file size limit bypass via async fileFilter race condition
multer is a middleware for handling multipart/form-data in Node.js. When an application uses an asynchronous fileFilter together with the fileSize limit, a race condition in multer's file stream handling can allow a file that exceeds the configured size limit…
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Low 3.1
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, iOS 18.7.1…
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Low 3.1
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, iOS 18.7.1…
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Low 3.1CVE-2026-19975 Public exploit
Azuriom CMS Money Transfer ProfileController.php transferMoney toctou
A weakness has been identified in Azuriom CMS up to 1.2.12. This issue affects the function transferMoney of the file app/Http/Controllers/ProfileController.php of the component Money Transfer Handler. This manipulation causes time-of-check time-of-use. The a…
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Low 2.5
UpdateHub: race condition on shared context causes out-of-bounds write and DoS
The UpdateHub management subsystem (subsys/mgmt/updatehub/updatehub.c) drives every update operation through a single file-scope ctx structure that holds the CoAP block context, payload buffer, status code, socket, and a one-element poll-fd array fds[1]. Acce…
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Low 2.6
allegro Hostname Allocation assets.py AssetLastHostname.increment_hostname race condition
A vulnerability was determined in allegro up to bcf65b994ef29fb3fc2e10b660e6288723d5209e. This impacts the function AssetLastHostname.increment_hostname of the file src/ralph/assets/models/assets.py of the component Hostname Allocation Handler. Executing a ma…
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Low 3.1
RFCOMM session-disconnect race leaks session/L2CAP and denies further RFCOMM service in Zephyr Bluetooth Classic
A race condition in the Zephyr Bluetooth Classic RFCOMM host stack (subsys/bluetooth/host/classic/rfcomm.c) mishandles a simultaneous bidirectional session disconnect. When the local device has initiated a session teardown (state BT_RFCOMM_STATE_DISCONNECTING…
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Low 3.1
Open5GS NGAP Handover gmm-sm.c gmm_state_security_mode race condition
A security flaw has been discovered in Open5GS up to 2.7.6. The impacted element is the function gmm_state_security_mode of the file src/amf/gmm-sm.c of the component NGAP Handover. Performing a manipulation results in race condition. The attack can be initia…
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Low 3.1
Race in WebRTC in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data …
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Low 3.9
Non-reentrant privilege toggle
A race condition in the privilege toggle mechanism in Netatalk 2.2.5 through 4.4.2 allows a local attacker to obtain limited information, modify limited data, or cause a minor service disruption.
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Low 3.1
EMQX QoS 2 PUBLISH Packet emqx_persistent_session_ds.erl race condition
A vulnerability has been found in EMQX up to 6.2.0. This affects an unknown function of the file apps/emqx/src/emqx_persistent_session_ds.erl of the component QoS 2 PUBLISH Packet Handler. Such manipulation leads to race condition. The attack may be performed…
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Low 2.1
Parse Server: MFA SMS one-time password accepted twice under concurrent login
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password (OTP) login path allows two concurrent /login requests carrying the sa…
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Low 3.1
Race in Shared Storage in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the render…
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Low 2.6
chatchat-space Langchain-Chatchat OpenAI-Compatible File Upload API openai_routes.py files toctou
A vulnerability has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. Impacted is the function files of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component OpenAI-Compatible File Upload API. Such manipulatio…
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Low 3.1
Race in MHTML in Google Chrome prior to 147.0.7727.138 allowed an attacker who convinced a user to install a malicious …
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Low 3.7
OpenClaw < 2026.4.4 - Rate-Limit Bypass via Concurrent Async Authentication Attempts
OpenClaw before 2026.4.4 contains a race condition vulnerability in shared-secret authentication that allows concurrent asynchronous requests to bypass the per-key rate-limit budget. Attackers can exploit this by sending multiple simultaneous authentication a…
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Low 3.3
uutils coreutils mkdir Permission Exposure Race Condition with -m
The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions (typically 0755) before subsequently changing them to the requested mode via a separate chmod system call. In m…