CVE-2026-114236

Podman: goroutine/file-descriptor leak in storage/pkg/archive.applylayer and applyuncompressedlayer on malformed layers

storage/pkg/archive.ApplyLayer and ApplyUncompressedLayer may, when processing corrupt or malicious inputs, leak a file descriptor; unbounded repeated calls can exhaust the process’ file descriptor limit

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Advanced Cluster Security Ansible Automation Platform Certifications and 16 more

CVE-2026-0992

Libxml2: libxml2: denial of service via crafted xml catalogs

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.

CVSS 3.1 · 2.9 Low EPSS < 1% KEV · Not listed

Vendors

Ibm Redhat Xmlsoft

Products

Aix Vios Enterprise Linux and 8 more

CVE-2026-0989

Libxml2: unbounded relaxng include recursion leading to stack overflow

A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested <include> directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed

Vendors

Ibm Redhat Xmlsoft

Products

Aix Vios Enterprise Linux and 8 more

CVE-2026-0988

Glib: glib: denial of service via integer overflow in g_buffered_input_stream_peek()

A flaw was found in glib. Missing validation of offset and count parameters in the g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When specially crafted values are provided, this overflow results in an incorrect size being passed to memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service (DoS).

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hummingbird Openshift Ai and 1 more

CVE-2026-0967

Libssh: libssh: denial of service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in a Denial of Service (DoS) for the client.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Libssh Redhat

Products

Libssh Enterprise Linux Hummingbird and 2 more

CVE-2026-0968

Libssh: libssh: denial of service due to malformed sftp message

A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this by sending a malformed 'longname' field within an `SSH_FXP_NAME` message during a file listing operation. This missing null check can lead to reading beyond allocated memory on the heap. This can cause unexpected behavior or lead to a denial of service (DoS) due to application crashes.

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed

Vendors

Libssh Redhat

Products

Libssh Enterprise Linux Hummingbird and 2 more

CVE-2026-0965

Libssh: libssh: denial of service via improper configuration file handling

A flaw was found in libssh where it can attempt to open arbitrary files during configuration parsing. A local attacker can exploit this by providing a malicious configuration file or when the system is misconfigured. This vulnerability could lead to a Denial of Service (DoS) by causing the system to try and access dangerous files, such as block devices or large system files, which can disrupt normal operations.

CVSS 3.0 · 3.3 Low EPSS < 1% KEV · Not listed

Vendors

Libssh Redhat

Products

Libssh Enterprise Linux Hummingbird and 2 more

CVE-2025-9820

Gnutls: stack-based buffer overflow in gnutls_pkcs11_token_init() function

A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that handles PKCS#11 token initialization. When a token label longer than expected is processed, the function writes past the end of a fixed-size stack buffer. This programming error can cause the application using GnuTLS to crash or, in certain conditions, be exploited for code execution. As a result, systems or applications relying on GnuTLS may be vulnerable to a denial of service or local privilege escalation attacks.

CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Ceph Storage Cert Manager Discovery and 7 more

CVE-2026-105326

Cups: cups: argument injection in mailto notifier via notify-recipient-uri

An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmail program without ensuring it cannot be interpreted as command-line options. A remote attacker who can reach the CUPS service could supply a crafted recipient value starting with "-" to influence sendmail behavior. Successful exploitation depends on the installed mail transfer agent and CUPS network exposure, and may lead to execution of attacker-controlled commands with the privileges of the CUPS service user.

CVSS 3.1 · 2.5 Low EPSS < 1% KEV · Not listed

Vendors

Cups Redhat

Products

Cups Enterprise Linux Hardened Images and 1 more

CVE-2025-14821

Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows

A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH (Secure Shell) connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an insecure default configuration on Windows systems where the library automatically loads configuration files from the C:\etc directory, which can be created and modified by unprivileged local users.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Libssh Redhat

Products

Libssh Enterprise Linux Hardened Images and 3 more

CVE-2025-11731

Libxslt: type confusion in exsltfuncresultcompfunction of libxslt

A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hummingbird Openshift and 1 more

CVE-2026-111253

Dnf5daemon-server: dnf5: dnf5daemon-server: missing session-owner check allows foreign d-bus callers to replace another client's resolved transaction

A flaw was found in dnf5daemon-server. Session methods on dynamically exported D-Bus session objects do not verify that the caller is the unique sender that created the session. A local attacker can modify another user's live package-management session and replace its resolved transaction plan. If the legitimate session party later authorizes execution, the root daemon may apply the attacker-chosen package operations.

CVSS 3.1 · 6.6 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Hardened Images Hummingbird

CVE-2026-56208

Libaom: libaom: heap buffer overflow in av1 encoder first-pass stats buffer via lap mode

A heap buffer overflow vulnerability was found in libaom, the reference AV1 codec implementation. A flaw in the AV1 encoder's Look-Ahead Processing (LAP) mode causes the first-pass stats ring buffer wrap-around guard to be bypassed when g_lag_in_frames is set to 1 or higher. This results in a 232-byte out-of-bounds write on every encoded frame after the second, corrupting adjacent heap objects. An attacker who can influence encoder configuration in a transcoding service or WebRTC session could exploit this to cause a denial of service (process crash) or potentially achieve code execution.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed

Vendors

Aomedia Redhat

Products

Libaom Ai Inference Server Enterprise Linux and 11 more

CVE-2026-48864

Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Opensuse Redhat

Products

Libsolv Cert Manager Discovery and 20 more

CVE-2026-123151

Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail

A flaw was found in the GNU debugger (GDB). When GDB connects to a remote debug target, a malicious target can cause GDB to overflow a buffer on the stack while parsing the target's replies. This can crash GDB or potentially allow the target to execute arbitrary code in the GDB client process with the privileges of the user running GDB.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 2 more

CVE-2026-121994

Gdb: gdb: stack buffer overflow in fetch_register_using_p via unchecked p-reply length

A stack buffer overflow in the GDB client's remote protocol handler allows an attacker-controlled debug target to execute arbitrary code in the GDB process. The vulnerability exists in fetch_register_using_p, which decodes a stub's register reply into an alloca-sized buffer without bounding writes by the register width.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 2 more

CVE-2026-5745

Libarchive: a null pointer dereference vulnerability exists in the acl parser of libarchive

A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, specifically within the archive_acl_from_text_nl() function. When processing a malformed ACL string (such as a bare "d" or "default" tag without subsequent fields), the function fails to perform adequate validation before advancing the pointer. An attacker can exploit this by providing a maliciously crafted archive, causing an application utilizing the libarchive API (such as bsdtar) to crash, resulting in a Denial of Service (DoS).

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Libarchive Redhat

Products

Libarchive Enterprise Linux Hardened Images and 5 more

CVE-2026-4426

Libarchive: libarchive: denial of service via malformed iso file processing

A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Libarchive Redhat

Products

Libarchive Enterprise Linux Hardened Images and 5 more

CVE-2026-4105

Systemd: systemd: privilege escalation via improper access control in registermachine d-bus method

A flaw was found in systemd. The systemd-machined service contains an Improper Access Control vulnerability due to insufficient validation of the class parameter in the RegisterMachine D-Bus (Desktop Bus) method. A local unprivileged user can exploit this by attempting to register a machine with a specific class value, which may leave behind a usable, attacker-controlled machine object. This allows the attacker to invoke methods on the privileged object, leading to the execution of arbitrary commands with root privileges on the host system.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hummingbird Openshift and 3 more

CVE-2026-1757

Libxml2: memory leak leading to local denial of service in xmllint interactive shell

A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hummingbird Jboss Core Services and 3 more