CVE-2026-55655 Openssh: local mitm of x11 forwarding via abstract unix socket pre-binding in red hat enterprise linux openssh client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

CVE-2026-55655

OpenSSH on Linux clients is affected by CVE-2026-55655. The issue allows a local unprivileged attacker to hijack client-side X11 forwarding connections by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. The attack can compr...

CVE-2026-55655

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

CVE-2026-56306

Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header ...

CVE-2026-56306

Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header ...

CVE-2026-56306

Capgo before 12.128.2 contains a parsing vulnerability in the x-limited-key-id header that can bypass subkey enforcement and let attackers make requests under the main API key context instead of restricted subkey permissions. The issue arises from malformed, zero, or duplicate header values produ...

CVE-2026-56306 Capgo - Subkey Enforcement Bypass via x-limited-key-id Header Parsing

Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header ...

CVE-2026-56306 Capgo - Subkey Enforcement Bypass via x-limited-key-id Header Parsing

Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header ...

CVE-2026-54289

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda@Edge, CloudFront delivers a request header that appears more than once as several separate entries. The adapter writes each value with Headers.set instead of Headers.append, so...

CVE-2026-54289

CVE-2026-54289 — Hono Lambda@Edge header handling : On AWS Lambda@Edge, prior to 4.12.25, CloudFront may deliver repeated headers as multiple entries. The Hono Lambda@Edge adapter uses Headers.set for each value, overwriting the previous one, so only the last value reaches the application. Header...

CVE-2026-54289 Hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda@Edge, CloudFront delivers a request header that appears more than once as several separate entries. The adapter writes each value with Headers.set instead of Headers.append, so...

CVE-2026-54283

Starlette is a lightweight ASGI framework/toolkit. From 0.4.1 until 1.3.1, request.form accepts maxfields and maxpartsize to bound resource consumption while parsing form data. These limits are enforced for multipart/form-data, but silently ignored for application/x-www-form-urlencoded. An...

SUSE-SU-2026:2493-1 Security update for containerized-data-importer

This update for containerized-data-importer fixes the following issues: - Security: re-vendor Go dependencies to address CVEs tracked against containerized-data-importer backport of upstream PR 4110, post-v1.65.0. Fixed by this update: google.golang.org/grpc 1.65.0 - 1.79.3: bsc1260295...

EUVD-2026-38249

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

SUSE-SU-2026:2487-1 Security update for rmt-server

This update for rmt-server fixes the following issues - CVE-2026-26961: rack: mismatch in header handling can allow to smuggle multipart content bsc1261398. - CVE-2026-26962: rack: improper unfolding of folded multipart headers can lead to header injection or response splitting bsc1261471. -...

CVE-2026-54665

Apache NiFi (versions 0.0.1–2.9.0) is affected by an input-validation flaw where URL redirection/data references can be influenced by non-standard host headers. NiFi 1.6.0 added a proxy-host header validation mechanism, but validation was not applied to alternative headers (X-ProxyHost, X-Forward...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel XkbNumKbdGroups but CheckKeyTypes does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow()

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow. A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in FreeCounter()

A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter. A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in miSyncDestroyFence()

A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence. A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection...