← Back
CWE-367

788 CVEs • Abstraction: Base • Likelihood of Exploit: Medium

Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

JSON object

Loading...

CVEs (788)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Google
1Chrome
Aug 31, 2026
Aug 25, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Race condition in Transactions Platform in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromiu...Show more
Race condition in Transactions Platform in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)Show less
1Google
1Chrome
Aug 27, 2026
Aug 25, 2026
N/A· v4
8.3 HIGH· v3
N/A· v2
Race condition in GPU in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromiu...Show more
Race condition in GPU in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)Show less
1Google
1Chrome
Aug 27, 2026
Aug 25, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Race condition in Start in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a co-installed app. (Chro...Show more
Race condition in Start in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a co-installed app. (Chromium security severity: Medium)Show less
1Google
1Chrome
Aug 28, 2026
Aug 25, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Race condition in Permissions in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity...Show more
Race condition in Permissions in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)Show less
1Google
1Chrome
Aug 27, 2026
Aug 25, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Race condition in Extensions in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Low)
1Google
1Chrome
Aug 27, 2026
Aug 25, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Race condition in WebProtect in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted HTML page. (Chromium security severity...Show more
Race condition in WebProtect in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)Show less
1Google
1Chrome
Aug 27, 2026
Aug 25, 2026
N/A· v4
3.1 LOW· v3
N/A· v2
Race condition in Payments in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium...Show more
Race condition in Payments in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)Show less
-
-
Aug 25, 2026
Aug 25, 2026
N/A· v4
7.1 HIGH· v3
N/A· v2
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, JobSubmitRequest.validate_webhook_url() accepts webhook_url when resolution raises socket.gaierror because the exception path uses except socket.gaierro...Show more
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, JobSubmitRequest.validate_webhook_url() accepts webhook_url when resolution raises socket.gaierror because the exception path uses except socket.gaierror: pass. JobExecutor._send_webhook() later performs a fresh lookup, allowing DNS changes to direct the request to an internal service. This issue is fixed in version 4.6.58.Show less
-
-
Aug 25, 2026
Aug 25, 2026
N/A· v4
6.8 MEDIUM· v3
N/A· v2
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the Jobs API validate_webhook_url() path fails open on socket.gaierror and does not bind the validated address to the later request. An attacker webhook...Show more
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the Jobs API validate_webhook_url() path fails open on socket.gaierror and does not bind the validated address to the later request. An attacker webhook_url can later resolve to 127.0.0.1, 169.254.169.254, or another internal address. This issue is fixed in version 4.6.58.Show less
-
-
Aug 31, 2026
Aug 25, 2026
6.9 MEDIUM· v4
5.3 MEDIUM· v3
N/A· v2
Grav API plugin before 1.0.16 contains a server-side request forgery vulnerability in webhook delivery that allows attackers to bypass hostname validation by DNS rebinding. Attackers controlling authoritative DNS for a c...Show more
Grav API plugin before 1.0.16 contains a server-side request forgery vulnerability in webhook delivery that allows attackers to bypass hostname validation by DNS rebinding. Attackers controlling authoritative DNS for a configured webhook hostname can answer validation lookups with public addresses and delivery lookups with private addresses to reach internal network resources.Show less
-
-
Aug 26, 2026
Aug 24, 2026
N/A· v4
6.4 MEDIUM· v3
N/A· v2
The userspace syscall verifier z_vrfy_mbox_send() in drivers/mbox/mbox_handlers.c validated the nested msg->data/msg->size fields by reading them directly out of live userspace memory, and then forwarded the original, st...Show more
The userspace syscall verifier z_vrfy_mbox_send() in drivers/mbox/mbox_handlers.c validated the nested msg->data/msg->size fields by reading them directly out of live userspace memory, and then forwarded the original, still-mutable userspace struct mbox_msg * pointer to z_impl_mbox_send() and the underlying driver. Between the access check and the driver's use of msg->data, the validated pointer could be replaced, leaving a time-of-check/time-of-use window. On a system built with CONFIG_USERSPACE, any unprivileged userspace thread may invoke the mbox_send() system call. A second thread sharing the caller's address space can race to overwrite msg->data with a supervisor (kernel) address after the verifier's bounds check has passed but before the driver dereferences it. The driver then reads from the attacker-chosen address in supervisor context (for example memcpy(&data32, msg->data, msg->size) in the NXP mailbox driver, whose bytes are subsequently emitted to the peer mailbox endpoint). The impact is a userspace-to-supervisor access-control bypass: disclosure of kernel memory contents (high confidentiality impact), or, for an invalid/unmapped target address, a faulting kernel read causing denial of service. The fix snapshots the entire struct mbox_msg into a kernel-stack copy with k_usermode_from_copy() and validates and forwards that immutable copy, closing the race.Show less
-
-
Aug 26, 2026
Aug 21, 2026
6.8 MEDIUM· v4
7.1 HIGH· v3
N/A· v2
In ONNX before 1.21.0, the 'save_external_data' function builds the external-data file path from the model's external_data location field and opens it for writing without 'O_NOFOLLOW/O_EXCL', after a non-atomic 'os.path....Show more
In ONNX before 1.21.0, the 'save_external_data' function builds the external-data file path from the model's external_data location field and opens it for writing without 'O_NOFOLLOW/O_EXCL', after a non-atomic 'os.path.isfile()' check. A local attacker with write access to the directory where a victim serializes external data can deterministically pre-plant a symlink that is being followed, causing the victim's write to append to any file the victim can write, e.g. ~/.ssh/authorized_keys, cron files, or application configs. Fixed in 1.21.0.Show less
1Ibm
2Aix
Vios
Aug 26, 2026
Aug 20, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to a time-of-check to time-of-use (TOCTOU) race condition.
1Google
1Chrome
Aug 25, 2026
Aug 20, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Race condition in V8 in Google Chrome prior to 151.0.7922.173 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
-
-
Aug 20, 2026
Aug 20, 2026
N/A· v4
2.8 LOW· v3
N/A· v2
Nix is a package manager for Linux and other Unix systems. Prior to 2.35.0, a malicious derivation executed with the recursive-nix experimental feature can exploit a time-of-check/time-of-use race involving final symlink...Show more
Nix is a package manager for Linux and other Unix systems. Prior to 2.35.0, a malicious derivation executed with the recursive-nix experimental feature can exploit a time-of-check/time-of-use race involving final symlink handling in the LocalStore restore path. The race can cause writeFile to follow a substituted final symlink when opening a path with O_TRUNC instead of enforcing FinalSymlink::DontFollow, allowing the Nix process or nix-daemon to create or truncate an empty file outside the build sandbox with the daemon user's permissions. The primitive does not provide arbitrary-content writes and requires winning the race. This issue is fixed in version 2.35.0.Show less
1Ibm
2Aix
Vios
Aug 24, 2026
Aug 20, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain root privileges due to a time-of-check to time-of-use (TOCTOU) race condition.
1Ibm
2Aix
Vios
Aug 24, 2026
Aug 20, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to a time-of-check to time-of-use (TOCTOU) race condition.
1Ibm
2Aix
Vios
Aug 26, 2026
Aug 19, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to overwrite critical files and obtain sensitive information due to a time-of-check to time-of-use (TOCTOU) race condition.
-
-
Aug 20, 2026
Aug 19, 2026
6.3 MEDIUM· v4
N/A· v3
N/A· v2
Time-of-check Time-of-use (TOCTOU) Race Condition in ZenHive mpp allows an unauthenticated remote client to redeem one confirmed on-chain payment for multiple paid-resource accesses. The type="hash" credential path in M...Show more
Time-of-check Time-of-use (TOCTOU) Race Condition in ZenHive mpp allows an unauthenticated remote client to redeem one confirmed on-chain payment for multiple paid-resource accesses. The type="hash" credential path in MPP.Methods.Tempo.verify/2 guards against replay with a non-atomic check-then-mark sequence: check_hash_unused/2 reads the dedup store, an eth_getTransactionReceipt round trip verifies the payment on chain, and only then does mark_hash_used/2 write the mark. Concurrent requests carrying the same settled payment hash all pass the read before any of them writes, so each is issued a receipt. The store's atomic check_and_mark/2 primitive is available and used by the type="transaction" path, but the hash path calls plain get and put even when the configured store implements it. Exploitation requires a dedup store to be configured; the default nil store is stateless and documented as offering no replay protection at all. This issue affects mpp: from 0.2.0 before 0.6.1.Show less
-
-
Aug 31, 2026
Aug 19, 2026
N/A· v4
7.6 HIGH· v3
N/A· v2
Secure BootROM of RK3588s SoC is vulnerable to a time-of-check to time-of-use attack in case of booting from external media (SPI NOR or NAND, EMMC or SD). The code reads the header of the next-stage loader twice. The...Show more
Secure BootROM of RK3588s SoC is vulnerable to a time-of-check to time-of-use attack in case of booting from external media (SPI NOR or NAND, EMMC or SD). The code reads the header of the next-stage loader twice. The header contains hashes of the executable modules and is signed with a private key, the public part of which is verified against the SHA256 digest blown in the OTP. The first read is only partial and contains only the hashes of the executable modules. The second is complete, including the header signature. Although the header is verified based on the fully read data, the authenticity of the executable modules is checked against the partial data from the first read. An attacker with physical access to a device containing RK3588s SoC can easily modify the next-stage loader data on-the-fly using a low-cost SD-card or SPI NOR/NAND or EMMC emulator. Even a simple ultra low-cost circuit comprising two memory chips (containing the same data but different headers - the original and the modified one) and a multiplexer can be used to carry out an attack. This can lead to arbitrary code execution with the highest privileges available (EL3). This issue affects RK3588s: RK3588s SoC BootROM (secure) 350B20210512V100 and possibly others. As remediation apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable https://www.rock-chips.com/a/en/products/RK35_Series/2022/0926/1660.htmlShow less