CVE-2026-70481

CVE-2026-70481 Open WebUI, afectado desde 0.5.0 hasta 0.10.2, parcheado en 0.11.0. Moderado, CVSS 5.4, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L, CWE-284 y CWE-862. En backend/openwebui/routers/channels.py los manejadores de actualización y eliminación de mensajes se ramifican según el tipo de...

Security update for gh (important)

openSUSE Security Update: Security update for gh Announcement ID: openSUSE-SU-2026:0333-1 Rating: important References: 1278604 Cross-References: CVE-2026-56854 CVE-2026-56855 CVE-2026-78662 CVSS scores: CVE-2026-56854 SUSE: 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N...

Security update for gh (important)

openSUSE security update: security update for gh ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21861-1 Rating: important References: bsc1278604 Cross-References: CVE-2026-56854 CVE-2026-56855 CVE-2026-78662 CVSS scores: CVE-2026-56854 SUSE : 8.1...

OPENSUSE-SU-2026:21861-1 Security update for gh

This update for gh fixes the following issues: Changes in gh: Update to version 2.100.0, fixing two deadlock issues in the vendored golang.org/x/crypto/ssh library reachable via crafted SSH channel messages CVE-2026-56854, CVE-2026-56855, CVE-2026-78662, bsc1278604: Fix gh api telemetry disableme...

Open WebUI: Channel members can overwrite another member's message via the chat completions endpoint

Summary Any member of a channel who can post to it could also replace the text of a message written by a different member. The channel branch of the chat completions endpoint checked that the caller may write to the channel, and that the targeted message belongs to that channel, but never checked...

AZL-99135 CVE-2026-56855 affecting package cri-o 1.30.1-1

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

AZL-99222 CVE-2026-56855 affecting package gh for versions less than 2.101.0-1

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

AZL-99309 CVE-2026-56855 affecting package nvidia-container-toolkit 1.17.8-4

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

CVE-2026-56855

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

AZL-99123 CVE-2026-56855 affecting package buildah 1.43.1-3

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

UBUNTU-CVE-2026-56855

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

EUVD-2026-70267

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

CVE-2026-56855 Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

EUVD-2026-52882

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access i...

CVE-2026-70481

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access i...

Open WebUI's Insecure Message Access Breaks Authorization

DescriptionThere's an IDOR in the channels message management system that allows authenticated users to modify or delete any message within channels they have read access to. The vulnerability exists in the message update and delete endpoints, which implement channel-level authorization but...

PT-2026-59388

Description There's an IDOR in the channels message management system that allows authenticated users to modify or delete any message within channels they have read access to. The vulnerability exists in the message update and delete endpoints, which implement channel-level authorization but...

UBUNTU-CVE-2026-56297

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcmanchannelclose and dvcmancallonreceive due to improper synchronization of channelcallback access. A malicious RDP server can trigger a race condition by sending DYNVCDATA and DYNVCCLOSE messages concurrently, causing...

EUVD-2026-36321

OpenClaw: Message read actions could skip channel allowlist checks...

CVE-2026-53815

OpenClaw before 2026.5.19 contains an authorization bypass vulnerability in message read actions that skips channel allowlist checks. Lower-trust callers can request messages from channels not intended for them by exploiting insufficient validation in the affected feature, potentially exposing...