CVE-2026-48014 Shopware: Admin API ACL Bypass in Order State Transition Endpoints

Shopware is an open commerce platform. Prior to 6.6.10.18 and 6.7.10.1, the order state transition features /api/action/order/orderId/state/transition and similar transaction and delivery transition routes in src/Core/Checkout/Order/Api/OrderActionController.php do not declare...

CVE-2026-63097

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097

Dendrite 0.13.8 is affected by an improper access-control in the syncapi /context endpoint (syncapi/routing/context.go). The flaw uses a flawed membership check that only considers RoomExists, ignoring IsInRoom, HasBeenInRoom, and Membership fields, allowing authenticated local users who have lef...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

Important: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

DEBIAN-CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

UBUNTU-CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

RHEL 7 : kernel (RHSA-2026:41235)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41235 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: sched: actcsum: validate...

PT-2026-60790

Name of the Vulnerable Software and Affected Versions Dendrite versions prior to 0.13.9 Description An improper access control issue exists in the syncapi /context endpoint syncapi/routing/context.go. Authenticated local users can access room state events that should be restricted after they have...

CVE-2026-54340 h2o has HTTP/2 state amplification

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340

CVE-2026-54340 affects the h2o HTTP server (HTTP/2) and describes an HTTP/2 state amplification issue where HPACK decompression amplification combines with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams; depending on configuration, additi...

CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-44436

Quicly (QUIC implementation used with H2O) is vulnerable to a Denial of Service due to connection state corruption caused by a 255-byte Connection ID handling in the decoder, while QUIC version 1 requires a 20-byte CID buffer. The library lacked enforcement for 20-byte CIDs, allowing mismatched I...

CVE-2026-44436 Quicly is vulnerable to connection state corruption

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 8b178e6, Quicly is vulnerable to a Denial of Service attack through connection state corruption. In QUIC Invariants, the maximum length of a Connection ID is 255 bytes, while QUIC...