CVE-2026-124745

Busybox: tar deferred hardlink target resolved through a deferred symlink escapes the extraction directory

A flaw was found in BusyBox. When extracting an archive, the tar utility improperly resolves deferred hardlink targets across symbolic links pointing outside the intended extraction directory. An attacker could provide a specially crafted archive that links to sensitive files outside the extraction tree, allowing subsequent extraction operations to overwrite arbitrary files on the system.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Busybox Red Hat Redhat

Products

Busybox Enterprise Linux Enterprise Linux and 3 more

CVE-2026-127029

Freeradius: stack-based buffer overflow via unbounded eap-sim identity length

A flaw was found in freeradius's Extensible Authentication Protocol Method for Subscriber Identity Module (EAP-SIM) module. When handling authentication requests, the server copies a client-supplied identity into an internal structure without properly checking its length against a fixed-size buffer. An unauthenticated remote attacker can exploit this issue by sending specially crafted EAP-SIM messages, triggering a stack buffer overflow that crashes the service and results in a Denial of Service (DoS).

CVSS 3.1 · 7.5 High EPSS n/a KEV · Not listed

Vendors

Freeradius Red Hat Redhat

Products

Freeradius Enterprise Linux Enterprise Linux and 1 more

CVE-2026-127100

Sssd: sssd: local denial of service through unchecked oauth2 json code type in pam responder

A flaw was found in SSSD's PAM responder on builds with the JSON PAM extension enabled. A local attacker can submit a crafted authentication request containing a non-string OAuth2 code value. Missing JSON type validation leads to a NULL pointer dereference, terminating the PAM responder and disrupting SSSD-backed authentication.

CVSS 3.1 · 5.5 Medium EPSS n/a KEV · Not listed

Vendors

Red Hat Redhat Sssd

Products

Enterprise Linux Enterprise Linux Openshift and 3 more

CVE-2026-126831

Cpio: cpio: stack-based buffer overflow in write_out_tar_header() with long usernames/groupnames

A flaw was found in cpio. A local user can cause a Denial of Service (DoS) by triggering a stack-based buffer overflow when creating archives in tar or ustar formats. When archiving files owned by users or groups with names exceeding 32 characters, cpio copies these names into fixed-size memory without verifying their length. This unbounded copy corrupts stack memory and causes the application to crash.

CVSS 3.1 · 5.5 Medium EPSS n/a KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 2 more

CVE-2026-112314

Krb5: mit krb5 gss-rpc client memory leak on xid mismatch retries

clnttcp_call() in lib/rpc/clnt_tcp.c in MIT Kerberos 5 (aka krb5) does not free the RPC reply verifier between retries, which allows remote attackers to cause a denial of service (memory leak in GSS-RPC client programs) by injecting RPC replies with mismatched XIDs or by triggering authentication retries.

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

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Enterprise Linux Eus and 4 more

CVE-2026-103963

Glib-networking: unbounded tls 1.3 session ticket queue growth in glib-networking allows remote denial of service

A flaw was found in glib-networking. When establishing connections using Transport Layer Security (TLS) version 1.3, the client-side session cache does not limit the number of session tickets retained for a single host. A malicious server can exploit this by sending excessive session ticket messages, causing the client application to continuously consume memory. This unbounded memory growth can exhaust system memory, resulting in a Denial of Service (DoS).

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

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Enterprise Linux Eus and 2 more

CVE-2026-108472

Xfsprogs: xfsprogs: local privilege escalation via command injection in xfs_admin

A flaw was found in the xfs_admin utility in xfsprogs. The tool does not properly validate user-supplied parameters, allowing operating system command injection. A local attacker can exploit this issue by providing crafted input arguments, which may result in arbitrary command execution and local privilege escalation depending on how xfs_admin is executed.

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

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Enterprise Linux Eus and 4 more

CVE-2026-124746

Busybox: out-of-bounds read in volume_id_get_buffer() via an offset+length wraparound

A flaw was found in BusyBox. An integer overflow occurs in the volume_id component when calculating buffer boundaries while probing filesystem metadata. An attacker can exploit this vulnerability by providing a specially crafted filesystem image on an attached storage device. When probed by utilities such as blkid, findfs, or mount, the application crashes, resulting in a Denial of Service (DoS) that prevents the system from resolving or mounting storage devices.

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

Vendors

Busybox Red Hat Redhat

Products

Busybox Enterprise Linux Enterprise Linux and 3 more

CVE-2026-85518

Openscap: openscap: arbitrary file write via path traversal in source datastream decomposition

A flaw was found in OpenSCAP. When decomposing a Source DataStream (SDS) file, the application does not properly validate relative file path attributes, leading to a path traversal vulnerability. An attacker can exploit this flaw by tricking a user or automated system into decomposing a crafted datastream containing directory traversal sequences. Successful exploitation allows unauthorized file creation or modification outside the intended target directory with the permissions of the executing process.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Openscap Red Hat Redhat

Products

Openscap Enterprise Linux Enterprise Linux and 3 more

CVE-2026-124744

Busybox: cpio hardlink target not sanitized under feature_path_traversal_protection

A flaw was found in BusyBox. When extracting files using the cpio utility with path traversal protection enabled, hardlink target paths are not properly sanitized. By tricking a user or automated process into extracting a crafted archive, an attacker can create hardlinks that point to files outside the intended extraction directory. This issue may allow an attacker to modify or overwrite arbitrary files outside the target directory during subsequent extraction operations.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 2 more

CVE-2026-16118

Xdgmime: heap-based buffer overflow in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c

A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Ai Inference Server Cert Manager Cost Management On Premise and 10 more

CVE-2026-122056

Openscap: one-byte heap buffer overflow in sds-compose may lead to denial-of-service

A flaw was found in OpenSCAP. A heap-based buffer overflow can occur when processing a specially crafted Extensible Configuration Checklist Description Format (XCCDF) document using the sds-compose option. An attacker could exploit this vulnerability to corrupt memory, resulting in an application crash and a Denial of Service (DoS).

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Openscap Red Hat Redhat

Products

Openscap Enterprise Linux Enterprise Linux and 3 more

CVE-2026-125707

Gst-plugins-bad: gst-plugins-bad: off-by-one write in mxf demuxer temporal offset table

A flaw was found in GStreamer's MXF demuxer. When an application processes a crafted MXF file, an off-by-one bounds check can allow a one-byte write past the logical end of a temporal offset array. This may corrupt memory and cause the application to crash. The extent of the impact has not been demonstrated by a runtime test.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Rhel Els

CVE-2026-125706

Gst-plugins-bad: gst-plugins-bad: missing bounds checks in mpeg ps pes header parsing

A flaw was found in GStreamer's gst-plugins-bad MPEG Program Stream demuxer and resindvd DVD-playback plugin. The PES header parsers do not adequately check remaining data before reading timestamps and optional header fields. Opening a specially crafted MPEG Program Stream file can cause an out-of-bounds read and potentially crash the application, resulting in a denial of service.

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

Vendors

Redhat

Products

Enterprise Linux Rhel Els

CVE-2026-125703

Gst-plugins-bad: gst-plugins-bad: bounds check errors in mxf vanc packet handling

A flaw was found in the GStreamer gst-plugins-bad MXF plugin. Insufficient bounds checks when parsing crafted VANC data can cause an out-of-bounds read in the demuxer, while an incorrect buffer size calculation when muxing multiple ancillary packets can cause an out-of-bounds write. Processing affected content may crash the application, resulting in a denial of service.

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

Vendors

Redhat

Products

Enterprise Linux Rhel Els

CVE-2026-91151

Cockpit: cockpit: local privilege escalation via insecure symlink handling in public key addition helper

A flaw was found in Cockpit. A local authenticated user with control over a target account's home directory can exploit a privileged symlink dereference vulnerability in the `ssh-add-public-key.sh` helper. When this helper runs with elevated privileges, it can be tricked into following attacker-controlled symlinks within the `.ssh` or `authorized_keys` paths. This allows the attacker to arbitrarily change file ownership and modes, potentially leading to local privilege escalation and impacting the integrity, confidentiality, and availability of the system.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Eus Openshift Devspaces and 2 more

CVE-2026-91150

Cockpit: cockpit: denial of service via unbounded fragmented websocket messages

A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to send specially crafted fragmented WebSocket messages. These messages accumulate without a total-size limit, leading to unbounded memory exhaustion and a denial of service in the `cockpit-ws` service.

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

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Eus Openshift Devspaces and 2 more

CVE-2026-84837

Rpm: command injection in `rpmbuild -t*` (`gettarspec`) via unescaped tarball path

A flaw was found in rpm. An attacker can exploit a command injection vulnerability by influencing the path or filename of a tarball processed by `rpmbuild -t*` to include shell metacharacters. This is particularly relevant in automated build or continuous integration (CI) workflows that ingest externally supplied artifact names. Successful exploitation allows for arbitrary command execution with the privileges of the build user, which could lead to information disclosure or disruption of the build environment.

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

Vendors

Redhat

Products

Enterprise Linux Hardened Images Hummingbird and 2 more

CVE-2026-78367

Rpm: rpmbuild gettarspec() crafted tar member name → macro injection

A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hummingbird Openshift Ai and 1 more

CVE-2026-84838

Rpm: command injection in rpmuncompress via unescaped filenames passed to popen()

A flaw was found in rpmuncompress. This command injection vulnerability allows a local attacker to execute arbitrary commands. This occurs when rpmuncompress processes a specially crafted archive filename containing shell metacharacters, which are not properly escaped before being passed to shell command strings. Successful exploitation requires user interaction, where a user or automated workflow invokes rpmuncompress on the malicious file, leading to high impact on the confidentiality, integrity, and availability of data accessible to the invoking user.

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hardened Images Hummingbird and 1 more