Filtered by vendor Redhat
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Total
23340 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-34003 | 2 Redhat, X.org | 8 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 5 more | 2026-05-28 | 7.8 High |
| A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X server, leading to an out-of-bounds memory access vulnerability. This could result in the disclosure of sensitive information or cause the server to crash, leading to a Denial of Service (DoS). In certain configurations, higher impact outcomes may be possible. | ||||
| CVE-2026-34001 | 2 Redhat, X.org | 8 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 5 more | 2026-05-28 | 7.8 High |
| A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system. | ||||
| CVE-2026-33999 | 1 Redhat | 7 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 4 more | 2026-05-28 | 7.8 High |
| A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts. | ||||
| CVE-2026-9801 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-05-28 | 4.9 Medium |
| A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol (LDAP) server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password policy response during a password authentication request, the attacker can trigger an OutOfMemoryError. This causes the Keycloak Java Virtual Machine (JVM) to terminate, leading to a denial of service (DoS) for all realms on the affected node. | ||||
| CVE-2026-4802 | 1 Redhat | 6 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 3 more | 2026-05-28 | 8 High |
| A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise. | ||||
| CVE-2026-9798 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-05-28 | 4.3 Medium |
| A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication (CIBA) flow to bypass this brute-force protection. This allows continued authentication attempts and token issuance even when the account should be locked, potentially enabling further unauthorized access attempts. | ||||
| CVE-2026-9802 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-05-28 | 6.8 Medium |
| A flaw was found in Keycloak. When revokeRefreshToken=true is enabled and persistent session storage is in use, a server restart can reset internal timing mechanisms. This allows a remote attacker, who has previously captured a user's refresh token, to replay that token even after it has been revoked. Successful exploitation grants the attacker unauthorized access to the victim's account, potentially leading to information disclosure or privilege escalation. | ||||
| CVE-2026-9804 | 1 Redhat | 1 Container Native Virtualization | 2026-05-28 | 7.7 High |
| A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data. | ||||
| CVE-2026-34002 | 2 Redhat, X.org | 6 Enterprise Linux, Enterprise Linux Eus, Rhel E4s and 3 more | 2026-05-28 | 6.1 Medium |
| A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension) modifier map handling. An attacker with access to the X11 server can exploit this by sending a malformed request, which causes the server to read beyond its intended memory boundaries. This can lead to the exposure of sensitive information or cause the server to crash, resulting in a denial of service. | ||||
| CVE-2026-34000 | 2 Redhat, X.org | 7 Enterprise Linux, Enterprise Linux Eus, Rhel E4s and 4 more | 2026-05-28 | 6.1 Medium |
| A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server. | ||||
| CVE-2026-4408 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-05-28 | 9 Critical |
| A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the "check password script" is used with %u and the samba-dcerpcd service is started as a system service. | ||||
| CVE-2026-9795 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-05-28 | 7.3 High |
| A flaw was found in Keycloak's Fine-Grained Admin Permissions (FGAPv2) feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security controls, allowing the injected role to be projected into a user's authentication token when they access the modified client. This could lead to unauthorized privilege escalation within the Keycloak realm. | ||||
| CVE-2026-44604 | 1 Redhat | 6 Enterprise Linux, Hummingbird, Openshift and 3 more | 2026-05-28 | 7 High |
| A command injection vulnerability was discovered in the `rpmuncompress` utility of RPM. When extracting certain archive formats (ZIP, 7z, GEM) to a specified destination directory, the tool inserts the archive's top-level folder name into a shell command without properly sanitizing it. A specially crafted archive containing shell metacharacters in its folder name can execute arbitrary commands as the user running the extraction. | ||||
| CVE-2026-9803 | 1 Redhat | 1 Build Keycloak | 2026-05-28 | 5.3 Medium |
| A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an ArrayIndexOutOfBoundsException, causing the server to return an HTTP 500 error and resulting in a Denial of Service (DoS) for the affected service. | ||||
| CVE-2026-9796 | 1 Redhat | 1 Build Keycloak | 2026-05-28 | 6.5 Medium |
| A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots. | ||||
| CVE-2026-9794 | 1 Redhat | 1 Build Keycloak | 2026-05-28 | 5.3 Medium |
| A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint with varying client IDs. By observing distinct faultstrings in the responses, the attacker can determine the client's protocol type, leading to information disclosure. | ||||
| CVE-2026-9792 | 1 Redhat | 1 Build Keycloak | 2026-05-28 | 6.5 Medium |
| A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure. | ||||
| CVE-2026-9793 | 1 Redhat | 1 Build Keycloak | 2026-05-28 | 5.9 Medium |
| A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leading to a compromise of data integrity within the OpenID Connect (OIDC) authorization flow. While a redirect URI allowlist acts as a compensating control, this vulnerability violates OIDC Core and Financial-grade API (FAPI) signing requirements. | ||||
| CVE-2026-9791 | 1 Redhat | 1 Build Keycloak | 2026-05-28 | 4.3 Medium |
| A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers. | ||||
| CVE-2026-32590 | 1 Redhat | 3 Mirror Registry, Mirror Registry For Red Hat Openshift, Quay | 2026-05-28 | 7.1 High |
| A flaw was found in Red Hat Quay's handling of resumable container image layer uploads. The upload process stores intermediate data in the database using a format that, if tampered with, could allow an attacker to execute arbitrary code on the Quay server. | ||||