Alertas de Seguridad de la Información

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53000] In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfree_rcu t…

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfree_rcu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nf_hook_ops that are used to register the callbacks. However, in v5.14 I added the ability to dump the active netfilter hooks from userspace. This code will…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Crítico vulnerabilidad

24/06/2026

[CVE-2026-53002] In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sp…

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnpri…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Crítico vulnerabilidad

24/06/2026

[CVE-2026-53006] In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv…

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr when net_dbg_ratelimited() is called in the slow path. - Avoid potential future misuse after pskb_pul…

nvdcriticovulnerabilidad CVSS 9.8 NVD

R Alto vulnerabilidad

23/06/2026

[CVE-2026-12112] A flaw was found in the foreman-mcp-server. A session management vulnerability in the MCP Server all…

A flaw was found in the foreman-mcp-server. A session management vulnerability in the MCP Server allows unauthenticated attackers to hijack active administrative sessions due to an improper cache of authenticated client connections, by trusting a non-secret session ID without re-validating authentication tokens and by logging all newly created session IDs to standard logs. This issue can result in…

nvdaltovulnerabilidad CVSS 7.8 NVD

T Alto vulnerabilidad

23/06/2026

[CVE-2023-54365] Traefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 req…

Traefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 request handling inherited from the Go standard library's HTTP/2 implementation (CVE-2023-44487 / CVE-2023-39325, the 'Rapid Reset' technique). A remote attacker can rapidly create and cancel HTTP/2 streams to exhaust server resources and cause service unavailability.

nvdaltovulnerabilidad CVSS 7.5 NVD

R Alto vulnerabilidad

22/06/2026

[CVE-2026-54099] A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platf…

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A compromised Windows worker node that holds WICD credentials can submit a CSR that is auto-approved and…

nvdaltovulnerabilidad CVSS 8.8 NVD

R Alto vulnerabilidad

22/06/2026

[CVE-2026-54100] A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platf…

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of W…

nvdaltovulnerabilidad CVSS 8.3 NVD

E Alto vulnerabilidad

17/06/2026

[CVE-2026-47774] Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to vers…

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability in Envoy's HTTP/2 downstream request processing allows an unauthenticated remote client to trigger excessive memory consumption, potentially resulting in OOM termination of the Envoy process and denial of service. The issue arises from the co…

nvdaltovulnerabilidad CVSS 7.5 NVD

A Alto vulnerabilidad

13/06/2026

[CVE-2026-54230] A symlink following vulnerability was found in the ABRT post-create event handler scripts in librepo…

A symlink following vulnerability was found in the ABRT post-create event handler scripts in libreport. Event scripts write output files using shell redirections without the O_NOFOLLOW flag. If the target file is replaced with a symlink, the shell process running as root follows the symlink and writes content to the symlink target, allowing arbitrary file overwrites on the system.

nvdaltovulnerabilidad CVSS 7.0 NVD

M Crítico vulnerabilidad

12/06/2026

[CVE-2026-44172] MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an appli…

MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application that was taking non-validated user input, escaping it with mysql_real_escape_string() and sending it to the database using text protocol and big5 character set was vulnerable to SQL injections, even though mysql_real_escape_string() was supposed to prevent them. This issue has been patched in…

nvdcriticovulnerabilidad CVSS 9.1 NVD

V Alto vulnerabilidad

10/06/2026

[CVE-2026-41731] JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trust…

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted header values that caused the consumer to deserialize arbitrary JDK types. Affected versions: Spring f…

nvdaltovulnerabilidad CVSS 8.1 NVD

I Alto vulnerabilidad

09/06/2026

[CVE-2025-71319] image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to …

image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset…

nvdaltovulnerabilidad CVSS 7.5 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50264] An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuff…

An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50258] A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has mu…

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 levels and trigger stack overflows. This is caused by an incomplete fix of CVE-2025-26597. This may…

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50259] A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() …

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50260] A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that s…

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 privilege escalation if the X server runs as root.

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50261] A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client …

A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50256] A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between …

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to c…

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

05/06/2026

[CVE-2026-50257] A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client…

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 destroys the fence, causing the use-after-free. This may be used to crash the server, or for privileg…

nvdaltovulnerabilidad CVSS 7.8 NVD

R Alto vulnerabilidad

02/06/2026

[CVE-2026-1784] The Route OpenShift resource allows to define routes to make pods reachable at a subdomain through H…

The Route OpenShift resource allows to define routes to make pods reachable at a subdomain through HAProxy. It was found that the checks performed on the spec.path YAML stanza in a Route document was insufficient and could allow a controlled injection of the HAProxy configuration.

nvdaltovulnerabilidad CVSS 8.8 NVD