[SECURITY] [DSA 6574-1] php8.4 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6574-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff October 21, 2026 https://www.debian.org/security/faq -...

CVE-2026-98505

A flaw was found in the Linux kernel. A race condition within the Data Access Monitor DAMON subsystem allows hardware-driven page table updates to be lost during the monitoring of huge memory pages. A local user running processes monitored by DAMON can trigger concurrent memory operations,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fixed an issue where incomplete state saving occurred in rxerequester. If a send packet is dropped by the IP layer in rxerequester, the call to rxexmitpacket may fail with an error code of -EAGAIN. To recover from this...

CVE-2026-55512

nebula-mesh (self-hosted control plane for Slack Nebula mesh VPN) versions 0.2.0 through before 0.5.0 are vulnerable to uncontrolled resource consumption via the GET /ui/oidc/login endpoint. When OIDC is enabled, this route is registered outside the Web UI rate-limited auth group, so every unauth...

PT-2026-68729

Name of the Vulnerable Software and Affected Versions llama.cpp versions b5702 through b7653 Description An out-of-bounds read exists in the recurrent memory state restore path. Attackers with write access to the slot save directory can craft a malicious slot file containing an oversized seq id...

EUVD-2026-50563

OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion Unbounded Map Growth...

GHSA-XPXJ-F2FM-RQCH OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)

Summary OliveTin's OAuth2 login handler stores per-login state in an in-memory map registeredStates that grows unboundedly. States are added on every /oauth/login request but are never deleted or expired. An unauthenticated attacker can send millions of requests to /oauth/login to fill the map wi...

CVE-2026-62434

A flaw was found in Xen. When a guest operating system is started with Populated on Demand PoD enabled, it can attempt to reclaim memory pages that are not regular guest RAM. This action can lead to the corruption of Xen's memory management state, potentially causing system instability or denial ...

CVE-2026-62434

The Xen hypervisor is vulnerable to a memory management flaw when Populated on Demand (PoD) is enabled. A guest can attempt to reclaim pages that are not regular guest RAM, potentially leading to corruption of the memory management state . Remediation is available via specific distribution update...

PT-2026-65476

Name of the Vulnerable Software and Affected Versions Xen affected versions not specified Description A guest started with Populated on Demand PoD enabled can attempt to reclaim pages that are not regular guest RAM. This action can lead to the corruption of the memory management state within Xen...

GO-2026-5989 Unauthenticated OIDC login in nebula-mesh allows unbounded memory allocation in github.com/forgekeep/nebula-mesh

When OIDC is enabled, the login endpoint is reachable without authentication and is registered outside the rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map. An unauthenticated remote client can grow the state storage, bounded by...

CVE-2026-64104

A flaw was found in the Linux kernel's SEV-ES Secure Encrypted Virtualization-Encrypted State guest module. When memory encryption or decryption operations fail, the affected memory pages can be left in an unknown or unencrypted state. This could lead to information disclosure, as these pages are...

nebula-mesh: Unauthenticated OIDC login endpoint allocates unbounded in-memory state entries without rate limiting

Summary When OIDC is enabled, GET /ui/oidc/login is reachable without authentication and is registered outside the Web UI rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map for 10m. Expired states are swept lazily, but there is no rat...

GHSA-M3CX-MWPG-32JG nebula-mesh: Unauthenticated OIDC login endpoint allocates unbounded in-memory state entries without rate limiting

Summary When OIDC is enabled, GET /ui/oidc/login is reachable without authentication and is registered outside the Web UI rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map for 10m. Expired states are swept lazily, but there is no rat...

PT-2026-58974

Summary When OIDC is enabled, GET /ui/oidc/login is reachable without authentication and is registered outside the Web UI rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map for 10m. Expired states are swept lazily, but there is no rat...

PT-2026-60105

Name of the Vulnerable Software and Affected Versions Nebula-mesh versions 0.2.0 through 0.3.8 Description When OIDC is enabled, the application is susceptible to a denial of service via memory exhaustion. An unauthenticated remote client can repeatedly send requests to the GET /ui/oidc/login...

PYSEC-2026-2943 PraisonAI has Memory State Leakage and Path Traversal in MultiAgent Context Handling

Summary The MultiAgentLedger and MultiAgentMonitor components in the provided code exhibit vulnerabilities that can lead to context leakage and arbitrary file operations. Specifically: 1. Memory State Leakage via Agent ID Collision: The MultiAgentLedger uses a dictionary to store ledgers by agent...

SUSE CVE-2026-53278

In the Linux kernel, the following vulnerability has been resolved: armmpam: Check whether the config array is allocated before destroying it destroycomponentcfg is called to free the configuration array. It uses the embedded 'garbage' structure, which means the array has to be allocated. If...

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...

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...