Search Results (1093 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-63297 1 Canonical 1 Lxd 2026-09-11 9.9 Critical
An authorization bypass vulnerability in LXD due to a timing flaw during configuration merging allows an authenticated attacker to bypass target project restrictions during cross-project instance copies. When copying an instance to a target project, LXD performs restriction checks before configuration merging is complete, creating a time-of-check to time-of-use (TOCTOU) condition. An attacker can exploit this flaw to copy instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.
CVE-2026-68488 1 Webpros 1 Plesk 2026-09-11 N/A
A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following in Plesk causes local privilege escalation to root via arbitrary file/directory ownership takeover.
CVE-2026-69563 1 Microsoft 21 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 18 more 2026-09-10 7 High
Heap-based buffer overflow in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69440 1 Microsoft 6 Windows 11 24h2, Windows 11 24h2, Windows 11 25h2 and 3 more 2026-09-10 7 High
Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
CVE-2026-69779 1 Microsoft 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more 2026-09-10 7 High
Time-of-check time-of-use (toctou) race condition in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-73829 2 Zenhive, Zenhive 3 Mpp, Machine Payments Protocol, Mpp 2026-09-10 3.7 Low
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.
CVE-2026-18477 2 Gnu, Redhat 8 Tar, Discovery, Enterprise Linux and 5 more 2026-09-10 4.4 Medium
A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.
CVE-2026-87433 1 Google 1 Chrome 2026-09-10 8.8 High
Race condition in FileAPI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)
CVE-2026-78464 1 Microsoft 6 Windows 11 24h2, Windows 11 24h2, Windows 11 25h2 and 3 more 2026-09-10 7 High
Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
CVE-2026-86422 1 Imagemagick 1 Imagemagick 2026-09-10 3.3 Low
ImageMagick before 7.1.2-30 contains a time-of-check-time-of-use vulnerability in path policy enforcement on Windows that allows attackers to bypass read or write restrictions by exploiting symlink race conditions. Attackers can swap symlinks between policy validation and file access to read or write policy-denied files.
CVE-2026-69804 1 Microsoft 1 Sharepoint Server 2026-09-09 7.5 High
Time-of-check time-of-use (toctou) race condition in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-87554 2 Google, Microsoft 2 Chrome, Windows 2026-09-09 8.1 High
Race condition in Chromoting in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)
CVE-2026-87517 2 Apple, Google 2 Iphone Os, Chrome 2026-09-09 3.1 Low
Race condition in Mobile in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
CVE-2026-87523 1 Google 1 Chrome 2026-09-09 6.5 Medium
Race condition in DataTransfer in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-87457 2 Google, Microsoft 2 Chrome, Windows 2026-09-09 8.1 High
Race condition in Updater in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: Medium)
CVE-2026-18567 1 Ibm 1 Db2 Mirror For I 2026-09-08 4.4 Medium
IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a local attacker to obtain information due to a race condition involving a predictable Unix domain socket path in a world-writable directory.
CVE-2026-85045 1 Google 1 Chrome 2026-09-08 7.5 High
Race condition in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVE-2026-45197 1 Imaginationtech 1 Graphics Ddk 2026-09-08 2.5 Low
Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.
CVE-2026-64375 1 Linux 1 Linux Kernel 2026-09-08 7.8 High
In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with exec_update_lock (FD links) proc_pid_get_link() and proc_pid_readlink() currently look up the task from the pid once, then do the ptrace access check on that task, then look up the task from the pid a second time to do the actual access. That's racy in several ways. To fix it, pass the task to the ->proc_get_link() handler, and instead of proc_fd_access_allowed(), introduce a new helper call_proc_get_link() that looks up and locks the task, does the access check, and calls ->proc_get_link().
CVE-2026-76925 1 Redhat 1 Enterprise Linux 2026-09-08 5.8 Medium
A flaw was found in Flatpak. A Time-of-check to time-of-use (TOCTOU) race condition exists in the `org.freedesktop.Flatpak.SystemHelper` component. This vulnerability occurs because a privileged `chmod` operation executes before the OSTree repository validation within the `Deploy()` function. An attacker can exploit this timing window to redirect symlinks to arbitrary files, potentially leading to unauthorized file manipulation or information disclosure.