CVE-2026-114406

Ca-certificates: distrust emudhra intermediate ca certificates due to security concerns

The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL client using system CA store and cause such clients to connect to malicious sites. Due to inability to only distrust specific intermediate certificates in all clients using the system CA store, root CA certificates of authorities that signed weak intermediate CA certificates are being removed.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Advanced Cluster Security Agentic Cluster Security Suite Ai Inference Server and 23 more

CVE-2026-115456

Gcc: out-of-bounds read in std::from_chars

A flaw was found in gcc. An attacker could cause a Denial of Service (DoS) by passing a string that is not null-terminated to the std::from_chars() function in the libstdc++ library. This issue triggers an out-of-bounds read beyond the allocated buffer, potentially leading to invalid data parsing or an application crash.

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

Vendors

Gcc Red Hat Redhat

Products

Gcc Enterprise Linux Enterprise Linux and 6 more

CVE-2026-103242

Rpm: heap-based buffer overflow write in hex2binv() via a mistyped rpmtag_filesignatures header tag

A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.

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

Vendors

Red Hat Redhat Rpm

Products

Enterprise Linux Enterprise Linux Hardened Images and 4 more

CVE-2026-95520

Rpm: rpm: integer overflow in iterreadarchivenext() leads to heap-based buffer overflow when parsing untrusted rpm packages

A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's independently-controlled cpio filesize field is used to write attacker-controlled data past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.

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

Vendors

Red Hat Redhat Rpm

Products

Enterprise Linux Enterprise Linux Hardened Images and 4 more

CVE-2026-92824

Libmodulemd: libmodulemd: out-of-bounds read when emitting rpm-map artifacts

A flaw was found in libmodulemd. In the module stream v2 rpm-map emission path, an inner loop incorrectly uses the count of digest algorithms as its bound instead of the number of checksums in the current digest table. Crafted modulemd v2 metadata with multiple digest types can trigger an out-of-bounds read during YAML serialization, typically causing a crash and resulting in a denial of service.

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

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 4 more

CVE-2026-92823

Libmodulemd: libmodulemd: missing decompressed-size limit when parsing compressed yaml

A flaw was found in libmodulemd. In builds with rpmio support enabled, compressed modulemd YAML is decompressed through a custom read handler that does not enforce a cumulative decompressed-size limit before parsing. An attacker who can supply a highly compressible compressed YAML file can cause excessive CPU and memory consumption, resulting in a denial of service.

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

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 4 more

CVE-2026-92822

Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml

A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.

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

Vendors

Red Hat Redhat

Products

Enterprise Linux Enterprise Linux Hardened Images and 4 more

CVE-2026-114691

Gcc: integer wrap in `std

A flaw was found in the libstdc++ component of GCC. An attacker who can provide an excessively large element count to a boolean vector (std::vector<bool>) constructor can trigger an integer wrap during internal memory calculations. This issue leaves the container in an inconsistent state, leading to out-of-bounds memory access and resulting in an application crash or a Denial of Service (DoS) during subsequent operations.

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

Vendors

Gcc Red Hat Redhat

Products

Gcc Enterprise Linux Enterprise Linux and 6 more

CVE-2026-114690

Gcc: confirmed out-of-bounds read/write in libstdc++ parallel `std

A flaw was found in GCC. An out-of-bounds memory access vulnerability exists in the libstdc++ parallel search implementation due to an undersized internal buffer. A local attacker can exploit this flaw by providing crafted search data to an application compiled with parallel mode, causing the process to crash and leading to a Denial of Service (DoS).

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

Vendors

Gcc Red Hat Redhat

Products

Gcc Enterprise Linux Enterprise Linux and 6 more

CVE-2025-13327

Uv: uv: specially crafted zip archives lead to arbitrary code execution due to parsing differentials

A flaw was found in uv. This vulnerability allows an attacker to execute malicious code during package resolution or installation via specially crafted ZIP (Zipped Information Package) archives that exploit parsing differentials, requiring user interaction to install an attacker-controlled package.

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

Vendors

Astral Redhat

Products

Uv Ai Inference Server Openshift Ai

CVE-2026-13732

Gdb: gdb: out-of-bounds write in stabs parser read_member_functions() via crafted elf

A flaw was found in GDB's STABS debug format parser. The read_member_functions() function in gdb/stabsread.c contains a linked list removal bug in the code that separates destructor and non-destructor member functions of C++ classes. The bug causes the destructor entries to remain in the main function list while the list length counter is decremented, resulting in an out-of-bounds write when the function list is copied to its final allocated array. An attacker can craft an ELF binary with malicious .stab and .stabstr sections that triggers this out-of-bounds write when a user opens the file in GDB and performs any symbol-inspection operation such as setting a breakpoint. The inferior process does not need to be executed. Under controlled conditions, this was demonstrated to achieve execution of arbitrary commands within the GDB process.

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

Vendors

Redhat

Products

Cost Management On Premise Enterprise Linux Enterprise Linux Eus and 10 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-2026-84837

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-2026-55655

Openssh: local mitm of x11 forwarding via abstract unix socket pre-binding in red hat enterprise linux openssh client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack can compromise the confidentiality of forwarded X11 traffic, including sensitive window contents and input, and may allow some manipulation of the forwarded session.

CVSS 3.1 · 5 Medium EPSS < 1% KEV · Not listed

Vendors

Openbsd Openssh Redhat

Products

Openssh Openssh Enterprise Linux and 12 more

CVE-2026-55653

Openssh: double free in red hat enterprise linux versions of openssh dh-gex client path during fips known-group validation leads to client-side denial of service

A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. Successful exploitation leads to client-side process termination, resulting in a Denial of Service (DoS).

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Openbsd Openssh Redhat

Products

Openssh Openssh Enterprise Linux and 12 more

CVE-2026-13595

Util-linux: util-linux: heap use-after-free in libblkid nested partition probing

A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Kernel Linux Redhat

Products

Util-linux Util-linux Cost Management On Premise and 8 more

CVE-2026-43961

Vim: vimscript injection via unescaped filename in netrw s:netrwmarkfile() filter() expression allows arbitrary code execution

A flaw was found in Vim's netrw plugin. A crafted filename containing quote characters and expression fragments can break out of the quoted context during mark/unmark operations, allowing arbitrary Vimscript execution. This can be leveraged to run shell commands with the privileges of the user running Vim.

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

Vendors

Redhat Vim

Products

Enterprise Linux Enterprise Linux Eus Hummingbird and 6 more

CVE-2026-95619

Gcc: libstdc++ integer overflow in `new` operator

A flaw was found in libstdc++. An integer overflow can occur when processing large inputs to the aligned operator new in the C++ library. This vulnerability could lead to an undersized memory allocation, potentially causing memory corruption or application instability.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Hardened Images Hummingbird and 5 more

CVE-2026-102010

Gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: denial of service via use-after-free in binary heap erase_if

A flaw was found in GCC. When an application calls the erase_if function on a binary heap priority queue in libstdc++, the library reallocates storage but fails to update its internal entry pointer. An attacker capable of triggering this operation can exploit this use-after-free condition, leading to a Denial of Service (DoS) via an application crash or potential memory corruption.

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

Vendors

Gnu Redhat

Products

Gcc Enterprise Linux Enterprise Linux Eus and 7 more