Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: md/raid1: A memory leak was fixed in raid1run. raid1run calls setupconf, which registers a thread via mdregisterthread. If raid1setlimits fails, the previously registered thread remains unregistered, resulting in a memory leak of...

Astra Linux – Vulnerability in freerdp3

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfrailserverlocalmovesize dereferenced a freed xfAppWindow pointer because xfrailgetwindow returned an unprotected pointer from the railWindows hash table. This could allow the main thread to delete the wind...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: a fix was made to avoid a Use-After-Free issue in f2fswriteendio. According to syzbot, a use-after-free issue occurred in f2fswriteendio. This issue is caused by the following race condition: Loop device umount...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: Added a check for a failure in kcalloc in parsethreadgroups. Since kcalloc may fail, it is necessary to check its return value to prevent a NULL pointer derefrence when passing it to ofpropertyreadu32array...

UBUNTU-CVE-2026-52919

In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix tpmeter counter underflow during shutdown batadvtpsendershutdown unconditionally decrements the "sending" atomic counter. If multiple paths e.g. timeout, user cancel, and normal finish call this function, the...

PT-2026-51867

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw in the futex subsystem occurs because the need futex hash allocate default function incorrectly relies on CLONE THREAD semantics. This dependency breaks non-concurrency assumption...

JLSEC-2026-621 Thread-safety and out-of-bounds reads in the HTTP.jl content-type sniffer

Description The content-type sniffer had two memory/concurrency bugs. Number sniffing in isjson stored the strtod end-pointer out-parameter in a shared module-global VectorPtrUInt8; concurrent sniff calls on a multithreaded server raced on that single cell between the ccall and the subsequent rea...

389-ds-base security, bug fix, and enhancement update

2.8.0-7 - Resolves: RHEL-152356 - Getting 'buildcandidatelist - Database error 11' messages after migrating to LMDB. rhel-9.8.z - Resolves: RHEL-168967 - Web console doesn't show the sub suffix of ou=foo,ou=people,dc=example,dc=com. rhel-9.8.z - Resolves: RHEL-170269 - DS 12 does not handle escap...

CVE-2026-47241

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled inpu...

CVE-2026-47241 Net::IMAP: Denial of Service via incomplete raw argument validation

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled inpu...

GHSA-6WX8-W4F5-WWCR Concurrent Ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

Summary Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still...

Concurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity

Summary Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after one thread acquires the read lock 32,768 times. The lock stores a thread's local read and write hold counts in one integer. The low 15 bits are used for the read hold count, and bit 15 is used as WRITELOCKHELD...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: cifs: A connection leak occurs when the tlink setup fails. If the tlink setup fails and connections are lost, then the refcnt leak occurs due to the cifsd kthread not exiting. Additionally, fscache information is also leaked...

Astra Linux – Vulnerability in RustC

In the standard library of Rust before version 1.19.0, there is a synchronization issue with the MutexGuard object. MutexGuards can be used across threads of any type, which can lead to memory safety issues due to race conditions...

PT-2026-51069

Name of the Vulnerable Software and Affected Versions CoreWCF versions prior to 1.8.1 CoreWCF versions prior to 1.9.1 Description An unauthenticated remote attacker can trigger premature EOF End of File handling during the framing handshake of the net.tcp, net.pipe, or net.uds components. This...

PT-2026-51091

Name of the Vulnerable Software and Affected Versions concurrent-ruby versions prior to 1.3.7 Description Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after a single thread acquires the read lock 32,768 times. The lock manages a thread's local read and write hold counts...

Concurrent Ruby - ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

Summary Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still...

CVE-2026-55205 Hermes WebUI < 0.51.468 - Resource Exhaustion via Unauthenticated OAuth Flow Endpoint

Hermes WebUI before 0.51.468 contains a resource exhaustion vulnerability in the unauthenticated POST /api/onboarding/oauth/start endpoint that allows unbounded accumulation of in-memory flow state and daemon threads. Attackers can send repeated or concurrent requests to exhaust server memory and...

EUVD-2026-37904

Hermes WebUI before 0.51.468 contains a resource exhaustion vulnerability in the unauthenticated POST /api/onboarding/oauth/start endpoint that allows unbounded accumulation of in-memory flow state and daemon threads. Attackers can send repeated or concurrent requests to exhaust server memory and...

CVE-2026-55205

Hermes WebUI prior to 0.51.468 is affected by a resource-exhaustion vulnerability in the unauthenticated POST /api/onboarding/oauth/start endpoint. The issue allows unbounded accumulation of in-memory flow state and daemon threads, enabling repeated or concurrent requests to exhaust server memory...