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
- 8.2 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Write
A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset
- 7.5 High severity
Red Hat build of Quarkus 3.27.5.SP2: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
A flaw was found in Quarkus HTTP security. An unauthenticated attacker can exploit a discrepancy in how paths are normalized between the security matcher and HTTP request dispatchers. This allows the attacker to craft a URL that the security matcher considers
- 7.5 High severity
A flaw was found in Netty's StompSubframeDecoder component.
A flaw was found in Netty's StompSubframeDecoder component. A remote attacker can exploit this vulnerability by sending a specially crafted STOMP frame body without its terminating null byte. This causes the decoder to allocate a ByteBuf (a buffer for bytes) t
- 7.5 High severity
Red Hat Build of Apache Camel 3.33.4.redhat: Improper Handling of Highly Compressed Data (Data Amplification)
A flaw was found in RESTEasy's IIOImageProvider, which decodes attacker-supplied image request bodies without enforcing any limit on the declared image dimensions or pixel count. A remote, unauthenticated attacker can send a small crafted image declaring enorm
- 7.4 High severity
Red Hat Build of Apache Camel 3.33.4.redhat: Origin Validation Error
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-orig
- 7.4 High severity
Keycloak: Authentication Bypass by Capture-replay
A flaw was found in Keycloak. When deployed in stateless mode with MySQL or MariaDB, a mismatch in row-count semantics between the database driver and Keycloak's application logic allows an attacker to bypass replay protection. This vulnerability enables an at
- 7.5 High severity
Red Hat build of Quarkus 3.27.5.SP2: Allocation of Resources Without Limits or Throttling
A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a la
- 7.1 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Read
A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Control of Generation of Code
A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the bu
- 8.0 High severity
Red Hat Quay 3: Reliance on Insufficiently Trustworthy Component
A flaw was found in quay-builder-qemu. A remote attacker could exploit this by compromising the upstream `Noelware/docker-manifest-action` used in the release workflow, which is pinned to a mutable branch. This allows the attacker to inject arbitrary code, lea
- 7.4 High severity
Red Hat Ansible Automation Platform 2.6 for…: Improper Verification of Cryptographic Signature
A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the ba
- 7.2 High severity
Red Hat build of Keycloak 26.4: Missing Authorization
Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, incl
- 7.5 High severity
Red Hat build of Keycloak 26.4: Uncontrolled Resource Consumption
A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service responsible for authentication flows and theme management in Keycloak. The issue occurs because the system accepts arbitrary locale tags from una
- 8.1 High severity
Red Hat build of Keycloak 26.4: Missing Authorization
Keycloak provides a policy enforcer to protect applications by matching incoming web requests against defined security policies. A flaw was found where the enforcer fails to correctly normalize web addresses that contain special encoded characters, such as tho
- 7.5 High severity
Red Hat build of Keycloak 26.4: Missing Release of Memory after Effective Lifetime
A flaw was found in the SAML Redirect Binding implementation of Keycloak, an open-source identity and access management solution. The issue occurs because the custom DEFLATE compression and decompression helpers fail to release native zlib memory after use. An
- 7.8 High severity
GIMP: Integer Overflow or Wraparound
A flaw was found in the file-psd plugin in GIMP. When generating a thumbnail preview for a specially crafted PSD (Photoshop Document) image file, an integer overflow occurs during the multiplication of values from an embedded JPEG header. This leads to an unde
- 7.5 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Read
A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write
- 8.0 High severity
strimzi-kafka-operator: Improper Privilege Management
Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. In Strimzi 1.0.0 and earlier, an attacker who can create a Kafka custom resource can set Kafka.spec.entityOperator watchedNamespace to a targ
- 7.3 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in environment-modules. A local attacker can exploit this vulnerability by placing a maliciously named modulefile in a location visible to the victim's `MODULEPATH`. When the victim uses Bash completion for `module` or `ml` commands, the malic
- 7.3 High severity
Red Hat Enterprise Linux 9: Execution with Unnecessary Privileges
A privilege escalation flaw was found in the scan_mysql actor of leapp-upgrade-el9toel10 (provided by leapp-repository). During RHEL 9 to RHEL 10 upgrades, the actor runs: mysqld --validate-config --log-error-verbosity=2 directly as root in the Leapp actor con
- 7.1 High severity
Fedora: Incorrect Authorization
A flaw was found in PackageKit. PackageKit skips the polkit authorization check for transactions carrying the SIMULATE (dry-run) flag. In the dnf5 backend, the RepoRemove handler ignores that contract and always executes the real transaction because its guard
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
A flaw was found in GIMP. When processing a specially crafted lighting preset file, the Lighting Effects filter does not properly validate the number of light sources. This can lead to an out-of-bounds write, corrupting memory. An attacker could exploit this b
- 7.8 High severity
Red Hat Enterprise Linux 6: Out-of-bounds Write
A flaw was found in GIMP's PSP (Paint Shop Pro) file loader. When processing a compressed selection channel, a heap-based buffer overflow can occur due to a mismatch between the allocated buffer size and the amount of data decompressed. A remote attacker could
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
A flaw was found in GIMP's ICO file loader. When processing an ICO file containing an embedded PNG image, an integer overflow can occur during the calculation of the required buffer size. This leads to an undersized buffer being allocated, causing a heap-based
- 7.7 High severity
Red Hat Advanced Cluster Management for…: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted na
- 7.0 High severity
gvfs: Time-of-check Time-of-use (TOCTOU) Race Condition
A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Privilege Management
A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. The issue is a regression in c
- 8.1 High severity
Red Hat Ceph Storage 5: Deserialization of Untrusted Data
A flaw was found in the memcached cache plugin of the community.general Ansible collection. Although its documentation states that records are stored in JSON format, the plugin performs no explicit serialization and relies on python-memcached, which pickles va
- 7.5 High severity
Red Hat Enterprise Linux 10: Partial String Comparison
A flaw was found in SSSD's IdP authentication provider. The eval_access_token_buf() function compares the OIDC subject identifier using strncmp() with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An atta
- 8.1 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Input During Web Page Generation
A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, th
- 8.8 High severity
Red Hat Enterprise Linux 10: Improper Link Resolution Before File Access
A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sand
- 9.9 Critical severity
Red Hat build of Apache Camel - HawtIO 4: Improper Certificate Validation
A flaw was found in hawtio-operator. The operator reads the OpenShift Service CA private signing key from the openshift-service-ca namespace and uses it to mint client certificates with a Subject Common Name (CN) supplied by the author of a namespaced Hawtio c
- 8.2 High severity
Red Hat build of Apache Camel - HawtIO 4: Improper Privilege Management
A flaw was found in hawtio-operator. The operator's ClusterRole grants secrets: [create, get, list, update, watch] across all namespaces. While the operator uses a controller-runtime label-selector cache as a memory optimization, the ServiceAccount token autho
- 8.5 High severity
Red Hat Enterprise Linux 10: Release of Invalid Pointer or Reference
A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free
- 7.2 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges ca
- 8.4 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in 389-ds-base. The Cockpit 389 Console's LDAP editor constructs an ldapsearch command by embedding an LDAP entry's distinguished name (DN) into a shell command string without proper escaping. An LDAP user with delegated privileges to create o
- 9.8 Critical severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Improper Authentication
A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardl
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: NULL Pointer Dereference
A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKE
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Integer Underflow (Wrap or Wraparound)
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), the wrapped-record length read from the wire is validated only against an upper bound. A small wire length (0, 1, or 2) produces an en
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Incorrect Authorization
A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to r