Common Weakness Enumeration

CWE-362

Allowed-with-Review

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Abstraction: Class · Status: Draft

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.

3078 vulnerabilities reference this CWE, most recent first.

CVE-2026-16212 (GCVE-0-2026-16212)

Vulnerability from cvelistv5 – Published: 2026-07-19 03:45 – Updated: 2026-07-20 13:57
VLAI
Title
awesto django-shop Purchase Stock inventory.py race condition
Summary
A vulnerability was identified in awesto django-shop up to 1.2.4. Affected is an unknown function of the file shop/models/inventory.py of the component Purchase Stock Handler. The manipulation leads to race condition. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is told to be difficult. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 13:57 UTC
CWE
References
Impacted products
Vendor Product Version
awesto django-shop Affected: 1.2.0
Affected: 1.2.1
Affected: 1.2.2
Affected: 1.2.3
Affected: 1.2.4
    cpe:2.3:a:awesto:django-shop:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-16211 (GCVE-0-2026-16211)

Vulnerability from cvelistv5 – Published: 2026-07-19 03:30 – Updated: 2026-07-20 19:10
VLAI
Title
allegro Hostname Allocation assets.py AssetLastHostname.increment_hostname race condition
Summary
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 manipulation of the argument counter can lead to race condition. Attacks of this nature are highly complex. The exploitability is said to be difficult. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 18:01 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/380027 vdb-entrytechnical-description
https://vuldb.com/vuln/380027/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16211 third-party-advisory
https://vuldb.com/submit/857935 third-party-advisory
https://github.com/allegro/ralph/issues/3950 exploitissue-tracking
Impacted products
Vendor Product Version
n/a allegro Affected: bcf65b994ef29fb3fc2e10b660e6288723d5209e
    cpe:2.3:a:allegro:allegro:*:*:*:*:*:*:*:*
Show details on NVD website

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CVE-2026-16208 (GCVE-0-2026-16208)

Vulnerability from cvelistv5 – Published: 2026-07-19 02:45 – Updated: 2026-07-22 14:58
VLAI
Title
django-tastypie throttle.py CacheDBThrottle race condition
Summary
A flaw has been found in django-tastypie up to 0.15.1. The affected element is the function CacheThrottle/CacheDBThrottle of the file tastypie/throttle.py. This manipulation causes race condition. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 14:57 UTC
CWE
References
Impacted products
Vendor Product Version
n/a django-tastypie Affected: 0.15.0
Affected: 0.15.1
    cpe:2.3:a:django-tastypie:django-tastypie:*:*:*:*:*:*:*:*
Show details on NVD website

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CVE-2026-16082 (GCVE-0-2026-16082)

Vulnerability from cvelistv5 – Published: 2026-07-18 08:15 – Updated: 2026-07-22 15:49
VLAI
Title
Sipeed PicoClaw pipeline_execute.go ExecTool.executeRun toctou
Summary
A vulnerability was identified in Sipeed PicoClaw up to 0.2.9. The impacted element is the function ExecTool.executeRun of the file pkg/agent/pipeline_execute.go. The manipulation of the argument cwe leads to time-of-check time-of-use. The attack must be carried out locally. The exploit is publicly available and might be used. The reported GitHub issue was closed automatically with the label "not planned" by a bot.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 15:49 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/379794 vdb-entrytechnical-description
https://vuldb.com/vuln/379794/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16082 third-party-advisory
https://vuldb.com/submit/852944 third-party-advisory
https://github.com/sipeed/picoclaw/issues/3081 exploitissue-tracking
https://github.com/sipeed/picoclaw/ product
Impacted products
Vendor Product Version
Sipeed PicoClaw Affected: 0.2.0
Affected: 0.2.1
Affected: 0.2.2
Affected: 0.2.3
Affected: 0.2.4
Affected: 0.2.5
Affected: 0.2.6
Affected: 0.2.7
Affected: 0.2.8
Affected: 0.2.9
    cpe:2.3:a:sipeed:picoclaw:*:*:*:*:*:*:*:*
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CVE-2026-15995 (GCVE-0-2026-15995)

Vulnerability from cvelistv5 – Published: 2026-07-17 19:34 – Updated: 2026-07-20 13:28
VLAI
Title
IBM Cognos Analytics 12.1.3 general availability package contains a data integrity issue in the Agentic AI assistant that may cause incorrect report summaries or report-processing errors under concurrent use
Summary
IBM Cognos Analytics 12.1.3 GA Version with build number through 12.1.3-2606251736 could allow an attacker to obtain incorrect report summary results or cause report-processing failures due to a race condition in the Agentic AI assistant's concurrent request-handling logic when multiple authenticated users submit report-related tasks simultaneously.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 13:28 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7280311 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Cognos Analytics Affected: 12.1.3 GA Version with build number , ≤ 12.1.3-2606251736 (semver)
    cpe:2.3:a:ibm:cognos_analytics:12.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:cognos_analytics:12.1.3-2606251736:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-14367 (GCVE-0-2026-14367)

Vulnerability from cvelistv5 – Published: 2026-08-31 18:13 – Updated: 2026-09-01 14:05
VLAI
Title
I3C IBI work-node free-list data race between ISR and workqueue thread
Summary
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_ibi_work_enqueue_target_irq, i3c_ibi_work_enqueue_hotjoin, i3c_ibi_work_enqueue_controller_request, i3c_ibi_work_enqueue_cb) called sys_slist_get() directly from ISR context, while the workqueue handler i3c_ibi_work_handler() returned nodes with sys_slist_append() from the workqueue thread, with no lock on either side. Because sys_slist_get() and sys_slist_append() are neither atomic nor interrupt-safe, an IBI interrupt that fires while the workqueue thread is mid-append (or a truly parallel access under CONFIG_SMP) races on the shared list. This corrupts the list linkage: a node may be handed to two consumers, a node may be lost, or the head/tail pointers may be left inconsistent so sys_slist_get() returns a stale or garbage pointer. In the double-hand-out case the subsequent memcpy(ibi_node, ibi_work, sizeof(*ibi_node)) overwrites a node still in flight; a garbage pointer turns the same memcpy into an out-of-bounds write. The race is driven by I3C bus traffic — IBIs, hot-joins, and controller-role requests originate from target devices on the bus, and I3C supports hot-joining devices. An attacker controlling an I3C peripheral on the board's chip-to-chip bus can generate high-frequency interrupts timed to collide with the free operation. Exploitation requires physical access to the bus and winning a narrow timing window; the most realistic impact is a crash or hang (denial of service), with memory corruption possible but hard to control. The fix wraps all free-list sys_slist_get()/sys_slist_append() operations in the new ibi_work_alloc()/ibi_work_free() helpers, each guarded by a k_spinlock (ibi_work_lock), closing the race across ISR and thread contexts.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 14:04 UTC
CWE
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 3.2.0 , < 4.4.2 (semver)
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Show details on NVD website

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CVE-2026-13502 (GCVE-0-2026-13502)

Vulnerability from cvelistv5 – Published: 2026-06-28 14:45 – Updated: 2026-06-29 13:44
VLAI
Title
antlr ANTLR4 Maven Plugin GrammarDependencies.java ObjectInputStream.readObject toctou
Summary
A flaw has been found in antlr ANTLR4 up to 4.13.2. This affects the function ObjectInputStream.readObject of the file antlr4-maven-plugin/src/main/java/org/antlr/mojo/antlr4/GrammarDependencies.java of the component Maven Plugin. This manipulation causes time-of-check time-of-use. The attack is restricted to local execution. A high degree of complexity is needed for the attack. It is indicated that the exploitability is difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:44 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/374498 vdb-entrytechnical-description
https://vuldb.com/vuln/374498/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13502 third-party-advisory
https://vuldb.com/submit/838685 third-party-advisory
https://github.com/wooyun123/wooyun/issues/7 exploitissue-tracking
Impacted products
Vendor Product Version
antlr ANTLR4 Affected: 4.13.0
Affected: 4.13.1
Affected: 4.13.2
    cpe:2.3:a:antlr:antlr4:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-13198 (GCVE-0-2026-13198)

Vulnerability from cvelistv5 – Published: 2026-08-14 15:02 – Updated: 2026-08-14 19:44
VLAI
Title
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in KUNBUS piControl
Summary
Nozomi Networks Labs identified a CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the event notification functionality of KUNBUS piControl in version 2.6.2 that allows a local authenticated attacker to corrupt kernel heap and event-list state and disclose a small amount of adjacent kernel memory, resulting in kernel memory corruption and denial of service, by issuing concurrent crafted requests from multiple threads through the piControl character device.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 19:44 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
References
Impacted products
Vendor Product Version
KUNBUS piControl Affected: 0 , ≤ 2.6.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-13197 (GCVE-0-2026-13197)

Vulnerability from cvelistv5 – Published: 2026-08-14 15:01 – Updated: 2026-08-14 19:45
VLAI
Title
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in KUNBUS piControl
Summary
Nozomi Networks Labs identified a CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the configuration and process-image management functionality of KUNBUS piControl in version 2.6.2 that allows a local authenticated attacker to trigger use-after-free and invalid pointer dereferences on kernel configuration objects, resulting in kernel memory corruption and denial of service, by issuing concurrent crafted requests through the piControl character device.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 19:45 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
References
Impacted products
Vendor Product Version
KUNBUS piControl Affected: 0 , ≤ 2.6.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-11812 (GCVE-0-2026-11812)

Vulnerability from cvelistv5 – Published: 2026-08-10 23:09 – Updated: 2026-08-31 23:13
VLAI
Title
UpdateHub: race condition on shared context causes out-of-bounds write and DoS
Summary
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]. Access to ctx was not serialized, and prepare_fds() wrote ctx.fds[ctx.nfds] and incremented ctx.nfds with no bounds check. Two independent paths mutate ctx concurrently: the background autohandler running on the system workqueue, and user-triggered operations reached through the updatehub run shell command, direct API calls, or — since the operations are exposed as syscalls — userspace threads. When a second flow enters prepare_fds() while ctx.nfds is already 1, the write lands one element past the array; by struct layout it overlaps the adjacent ctx.sock/ctx.nfds members. More broadly, the unsynchronized sharing lets two flows interleave connection setup and teardown, double-closing a socket descriptor or scribbling the shared buffers. The result is corruption of the update subsystem's internal state and denial of service of the firmware-update path; the out-of-bounds write is contained within the ctx structure and there is no demonstrated path to memory outside it or to code execution. Triggering requires a local actor able to invoke update operations (or, with CONFIG_USERSPACE, an unprivileged userspace thread) and to win a timing race against the background handler; remote peers cannot control the race timing. The fix serializes the entry points with a mutex and adds a bounds check to prepare_fds().
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 18:51 UTC
CWE
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 2.0.0 , < 4.4.2 (semver)
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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-11812",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T18:51:06.812463Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-12T18:51:19.217Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
          "defaultStatus": "unaffected",
          "packageName": "zephyr",
          "product": "zephyr",
          "programFiles": [
            "subsys/mgmt/updatehub/updatehub.c"
          ],
          "vendor": "zephyrproject",
          "versions": [
            {
              "lessThan": "4.4.2",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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]. Access to ctx was not serialized, and prepare_fds() wrote ctx.fds[ctx.nfds] and incremented ctx.nfds with no bounds check.\n\nTwo independent paths mutate ctx concurrently: the background autohandler running on the system workqueue, and user-triggered operations reached through the updatehub run shell command, direct API calls, or \u2014 since the operations are exposed as syscalls \u2014 userspace threads. When a second flow enters prepare_fds() while ctx.nfds is already 1, the write lands one element past the array; by struct layout it overlaps the adjacent ctx.sock/ctx.nfds members. More broadly, the unsynchronized sharing lets two flows interleave connection setup and teardown, double-closing a socket descriptor or scribbling the shared buffers.\n\nThe result is corruption of the update subsystem\u0027s internal state and denial of service of the firmware-update path; the out-of-bounds write is contained within the ctx structure and there is no demonstrated path to memory outside it or to code execution. Triggering requires a local actor able to invoke update operations (or, with CONFIG_USERSPACE, an unprivileged userspace thread) and to win a timing race against the background handler; remote peers cannot control the race timing. The fix serializes the entry points with a mutex and adds a bounds check to prepare_fds()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 2.5,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
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          "format": "CVSS"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-362",
              "description": "race",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-31T23:13:25.394Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
      },
      "references": [
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/zephyrproject-rtos/zephyr/commit/551d3f92b36e9604f039101c4e4f623682d02159"
        },
        {
          "name": "GHSA-vprh-rff6-46xp",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-vprh-rff6-46xp"
        }
      ],
      "title": "UpdateHub: race condition on shared context causes out-of-bounds write and DoS",
      "x_generator": {
        "engine": "cvelib 1.8.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-11812",
    "datePublished": "2026-08-10T23:09:17.542Z",
    "dateReserved": "2026-06-09T15:51:50.979Z",
    "dateUpdated": "2026-08-31T23:13:25.394Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation
Architecture and Design

In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.

Mitigation
Architecture and Design

Use thread-safe capabilities such as the data access abstraction in Spring.

Mitigation
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).
Mitigation
Implementation

When using multithreading and operating on shared variables, only use thread-safe functions.

Mitigation
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.

Mitigation
Implementation

Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.

Mitigation
Implementation

Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.

Mitigation
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.

Mitigation
Implementation

Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.

Mitigation MIT-17
Architecture and Design Operation

Strategy: Environment Hardening

Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

CAPEC-26: Leveraging Race Conditions

The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.

CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions

This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.