EUVD-2026-37888

HVM guest I/O port accesses are subject to either emulation or at least translation. Translations are managed by the device model via XENDOMCTLioportmapping, and hence the linked list used may changed at any time. Traversal of those lists while handling guest I/O port accesses therefore needs...

PyO3 has a missing `Sync` bound on `PyCFunction::new_closure` closures

PyCFunction::newclosure and the temporary newclosurebound complement in the 0.21–0.22 series required the supplied closure to be Send + 'static but not Sync. The resulting PyCFunction is a Python callable that can be invoked from any Python thread, which means the closure may be called concurrent...

RUSTSEC-2026-0177 Missing `Sync` bound on `PyCFunction::new_closure` closures

PyCFunction::newclosure and the temporary newclosurebound complement in the 0.21–0.22 series required the supplied closure to be Send + 'static but not Sync. The resulting PyCFunction is a Python callable that can be invoked from any Python thread, which means the closure may be called concurrent...

Missing `Sync` bound on `PyCFunction::new_closure` closures

PyCFunction::newclosure and the temporary newclosurebound complement in the 0.21–0.22 series required the supplied closure to be Send + 'static but not Sync. The resulting PyCFunction is a Python callable that can be invoked from any Python thread, which means the closure may be called concurrent...

[SECURITY] Fedora 43 Update: rust-1.96.0-1.fc43

Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety. This package includes the Rust compiler and documentation generator...

[SECURITY] Fedora 43 Update: python-urllib3-2.7.0-2.fc43

urllib3 is a powerful, user-friendly HTTP client for Python. urllib3 brings many critical features that are missing from the Python standard libraries: =E2=80=A2 Thread safety. =E2=80=A2 Connection pooling. =E2=80=A2 Client-side SSL/TLS verification. =E2=80=A2 File uploads with multipart encoding...

CVE-2026-48066

pam_usb fixes a thread-unsafe behavior: before 0.9.1, src/log.c used a process-wide static pointer written on every PAM invocation to a stack-local address, creating a data race when PAM is invoked concurrently by multiple threads. The issue is resolved in version 0.9.1. Affected component: pam_u...

CVE-2026-44608 Use after free and crash under special conditions in RPZ code

NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a locking inconsistency vulnerability that when certain conditions are met multi-threaded, RPZ XFR reload, RPZ zone with 'rpz-nsip'/'rpz-nsdname' triggers it could result in heap use-after-free and eventual crash. An adversary can...

[SECURITY] Fedora 44 Update: python-urllib3-2.7.0-1.fc44

urllib3 is a powerful, user-friendly HTTP client for Python. urllib3 brings many critical features that are missing from the Python standard libraries: =E2=80=A2 Thread safety. =E2=80=A2 Connection pooling. =E2=80=A2 Client-side SSL/TLS verification. =E2=80=A2 File uploads with multipart encoding...

CVE-2026-43484

CVE-2026-43484 – Linux kernel MMC core : The vulnerability stems from concurrent updates to bitfield flags (claimed and retune_now) sharing a word, enabling write–overwrite of other bits in async contexts and triggering spurious WARN_ON(!host->claimed). The fix moves claimed, can_retune, retun...

CVE-2026-43358

A flaw was found in the Linux kernel's btrfs filesystem. A missing Read-Copy Update RCU unlock in an error path within the tryreleasesubpageextentbuffer function could lead to system instability. This issue, identified by a thread-safety analyzer, may result in a denial of service condition,...

CVE-2026-43358

CVE-2026-43358 affects the Linux kernel's btrfs filesystem. The vulnerability is a missing RCU unlock in the error path of try_release_subpage_extent_buffer(), where rcu_read_lock() should be held before exiting the loop because an rcu_read_unlock() occurs past the loop. The issue was identified ...

CVE-2026-43358: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: btrfs: add missing RCU unlock in error path in tryreleasesubpageextentbuffer Call rcureadlock before exiting the loop in tryreleasesubpageextentbuffer because there is a rcureadunlock call past the loop. This has been detected by...

JLSEC-2026-427 When doing multi-threaded LDAPS transfers (LDAP over TLS) with libcurl, changing TLS options in one...

When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers. Disabling certificate verification for a specific transfer could unintentionally...

[SECURITY] Fedora 44 Update: dtk6log-6.7.32-3.fc44

Simple, convenient and thread safe logger for Qt-based C++ apps...

K000160935: Curl vulnerability CVE-2025-14017

Security Advisory Description When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers. Disabling certificate verification for a specific...

Spring Security JdbcOneTimeTokenService allows a one-time token to authenticate multiple sessions

Applications that explicitly configure One-Time Token login with JdbcOneTimeTokenService are vulnerable to a Time-of-check Time-of-use TOCTOU race condition. An attacker with a valid one-time token can send concurrent requests to the authentication endpoint, allowing the single-use token to be...

freerdp: FreeRDP has a heap-use-after-free in ainput_send_input_event

A heap buffer use after free has been discovered in FreeRDP. ainputsendinputevent caches channelcallback in a local variable and later uses it without synchronization; a concurrent channel close can free or reinitialize the callback, leading to a use after free...

CVE-2026-23420

A flaw was found in the Linux kernel's wlcore Wi-Fi driver. This vulnerability involves an improper handling of a locking mechanism, specifically the wl-mutex. This can lead to system instability or unexpected behavior. The issue was identified by a thread-safety analyzer. Mitigation To mitigate...

EUVD-2026-18637

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: Fix a locking bug Make sure that wl-mutex is locked before it is unlocked. This has been detected by the Clang thread-safety analyzer...