Red Hat vulnerabilities
We track 2,065 vulnerabilities in Red Hat products across 60+ products. 2,057 are rated high or critical, and 99 have been exploited in real attacks. The most recent was published on November 13, 2026.
Latest Red Hat vulnerabilities
- 8.8 High severity
sudo: Improper Privilege Management
A flaw was found in sudo in the handling of ipa_hostname, where ipa_hostname from /etc/sssd/sssd.conf was not propagated in sudo. Therefore, it leads to privilege mismanagement vulnerability in applications, where client hosts retain privileges even after retr
- 7.0 High severity
Red Hat Enterprise Linux 8: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem o
- 8.1 High severity
Red Hat Single Sign-On 7: Improperly Implemented Security Check for Standard
Keycloak's device authorization grant does not correctly validate the device code and client ID. An attacker client could abuse the missing validation to spoof a client consent request and trick an authorization admin into granting consent to a malicious OAuth
- 7.5 High severity
An arithmetic overflow flaw was found in Satellite when creating a new personal access token.
An arithmetic overflow flaw was found in Satellite when creating a new personal access token. This flaw allows an attacker who uses this arithmetic overflow to create personal access tokens that are valid indefinitely, resulting in damage to the system's integ
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
A vulnerability was found in perl 5.30.0 through 5.38.0. This issue occurs when a crafted regular expression is compiled by perl, which can allow an attacker controlled byte buffer overflow in a heap allocated buffer.
- 7.7 High severity
Red Hat Single Sign-On 7.6 for RHEL 7: Allocation of Resources Without Limits or Throttling
An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessio
- 7.5 High severity
Red Hat Enterprise Linux 6 Extended Lifecycle…: Integer Overflow or Wraparound
A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive information.
- 7.8 High severity
Red Hat Enterprise Linux 6 Extended Lifecycle…: Out-of-bounds Read
A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X
- 7.8 High severity
Red Hat Ansible Automation Platform 2.4 for…: Improper Neutralization of Special Elements Used in a Template Engine
A template injection flaw was found in Ansible where a user's controller internal templating operations may remove the unsafe designation from template data. This issue could allow an attacker to use a specially crafted file to introduce templating injection w
- 7.5 High severity
Red Hat JBoss Enterprise Application Platform…: Allocation of Resources Without Limits or Throttling
A flaw was found in Undertow. When an AJP request is sent that exceeds the max-header-size attribute in ajp-listener, JBoss EAP is marked in an error state by mod_cluster in httpd, causing JBoss EAP to close the TCP connection without returning an AJP response
- 8.8 High severity
Red Hat Advanced Cluster Security 4.2: Integer Overflow or Wraparound
A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user ca
- 9.1 Critical severity
Red Hat build of Quarkus 2.13.9: Missing Authorization
A flaw was found in Quarkus. This issue occurs when receiving a request over websocket with no role-based permission specified on the GraphQL operation, Quarkus processes the request without authentication despite the endpoint being secured. This can allow an
- 7.1 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Read
An out-of-bounds read vulnerability was found in smb2_dump_detail in fs/smb/client/smb2ops.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
- 7.1 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Read
An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
- 7.8 High severity
kernel: NULL Pointer Dereference
A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system.
- 7.0 High severity
Red Hat Enterprise Linux 8: Improper Synchronization
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored
- 9.8 Critical severity
Red Hat Enterprise Linux 8: Improper Limitation of a Pathname to a Restricted Directory
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR
- 7.0 High severity
Red Hat Enterprise Linux 8: Use After Free
A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privile
- 7.5 High severity
Red Hat Enterprise Linux 8: Improper Handling of Exceptional Conditions
A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a la
- 7.5 High severity
Red Hat Enterprise Linux 9: Incorrect Conversion between Numeric Types
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
- 7.5 High severity
Red Hat Enterprise Linux 6 Extended Lifecycle…: Buffer Copy without Checking Size of Input
Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
- 8.1 High severity
kernel: Out-of-bounds Read
An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check o
- 7.2 High severity
Red Hat OpenShift Container Platform 4.11: Improper Privilege Management
A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes
- 8.8 High severity
Red Hat Enterprise Linux 8: Use After Free
A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which
- 7.8 High severity
Red Hat Enterprise Linux 7: Exposure of Resource to Wrong Sphere
A vulnerability was found in insights-client. This security issue occurs because of insecure file operations or unsafe handling of temporary files and directories that lead to local privilege escalation. Before the insights-client has been registered on the sy
- 7.5 High severity
Ironic content for Red Hat OpenShift Container…: Allocation of Resources Without Limits or Throttling
A regression was introduced in the Red Hat build of python-eventlet due to a change in the patch application strategy, resulting in a patch for CVE-2021-21419 not being applied for all builds of all products.
- 7.0 High severity
Red Hat Enterprise Linux 9: Use After Free
A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a scr
- 7.8 High severity
Red Hat Enterprise Linux 6 Extended Lifecycle…: Out-of-bounds Write
A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty funct
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the U
- 7.8 High severity
Red Hat Enterprise Linux 8: Use After Free
The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration e
- 7.7 High severity
Red Hat Enterprise Linux 8: Protection Mechanism Failure
A flaw was found in the tracker-miners package. A weakness in the sandbox allows a maliciously-crafted file to execute code outside the sandbox if the tracker-extract process has first been compromised by a separate vulnerability.
- 7.8 High severity
Red Hat Enterprise Linux 8: Integer Overflow or Wraparound
A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.
- 7.5 High severity
kubernetes: Incorrect Authorization
A flaw was found in OpenShift API, as admission checks do not enforce "custom-host" permissions. This issue could allow an attacker to violate the boundaries, as permissions will not be applied.
- 8.2 High severity
An improper input validation flaw was found in the eBPF subsystem in the Linux kernel.
An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF p
- 7.8 High severity
Red Hat Ansible Automation Platform 2.4 for…: Exposure of Sensitive System Information to an Unauthorized Control Sphere
A flaw was found in the Ansible Automation Platform. When creating a new keypair, the ec2_key module prints out the private key directly to the standard output. This flaw allows an attacker to fetch those keys from the log files, compromising the system's conf
- 8.1 High severity
candlepin-4.3.7: Incorrect Authorization
An improper access control flaw was found in Candlepin. An attacker can create data scoped under another customer/tenant, which can result in loss of confidentiality and availability for the affected customer/tenant.
- 7.5 High severity
odh-dashboard: Cleartext Transmission of Sensitive Information
A flaw was found in Red Hat OpenShift Data Science. When exporting a pipeline from the Elyra notebook pipeline editor as Python DSL or YAML, it reads S3 credentials from the cluster (ds pipeline server) and saves them in plain text in the generated output inst
- 7.4 High severity
Red Hat Data Grid 8.4.6: Improper Certificate Validation
A vulnerability was found in the Hot Rod client. This security issue occurs as the Hot Rod client does not enable hostname validation when using TLS, possibly resulting in a man-in-the-middle (MITM) attack.
- 7.1 High severity
Red Hat Single Sign-On 7: Improper Certificate Validation
A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client, the
- 7.5 High severity
Red Hat build of Quarkus 2.13.8.Final: Exposure of Sensitive Information to an Unauthorized Actor
A flaw was found in Quarkus. Quarkus OIDC can leak both ID and access tokens in the authorization code flow when an insecure HTTP protocol is used, which can allow attackers to access sensitive user data directly from the ID token or by using the access token