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CVE-2026-119618

Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers

Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Apache Apache Software Foundation Icing and 1 more
Products
Apache Http Server Http Server Apache Http Server and 5 more
CVE-2026-42784

Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion

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 back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat Sequoia-pgp
Products
Enterprise Linux Ansible Automation Platform Ansible Automation Platform Developer and 15 more
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-2026-121885

Podman: untrusted image labels allow auto-update to restart arbitrary systemd units

A flaw was found in Podman. An attacker can trigger a Denial of Service (DoS) by supplying a container image containing crafted metadata labels. Podman's auto-update mechanism improperly trusts these image labels to determine which system services to restart. If a user runs the malicious container and auto-update processes it, arbitrary system services are restarted with the user's privileges, potentially allowing an attacker to shut down the host system when Podman runs with administrative privileges.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Hummingbird Openshift
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-2026-123876

Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation

A flaw was found in the default seccomp profile used by Podman via containers-common. Deny rules for AF_VSOCK and NETLINK_AUDIT compared socket arguments with unmasked 64-bit equality. Because the kernel truncates those int arguments to 32 bits, setting upper bits can bypass the deny rules.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Containers Red Hat Redhat
Products
Podman Enterprise Linux Enterprise Linux and 4 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 1.2% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Enterprise Linux Enterprise Linux Eus and 4 more
CVE-2026-120749

Dbus: dbus-daemon: dbus-daemon aborts (reply_serial != 0) when a broadcast from the driver cannot be delivered to a monitored bus

A flaw was found in D-Bus. With a privileged Monitoring client attached (for example dbus-monitor or busctl monitor), an unprivileged local user can cause dbus-daemon to abort if a driver-originated broadcast such as NameOwnerChanged or ActivatableServicesChanged cannot be delivered to a recipient (for example due to a deny rule or an exceeded outgoing message queue). Driver broadcasts still use serial 0; when delivery fails, composing the monitor error reply asserts reply_serial != 0 and aborts the daemon.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Enterprise Linux Hardened Images and 2 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-2026-119079

Krb5: mit krb5 kdc unauthenticated cpu dos via quadratic asn.1 sequence of decoding

decode_sequence_of() in lib/krb5/asn.1/asn1_encode.c in MIT Kerberos 5 (aka krb5) 1.11 and later grows the decoded element array one entry at a time, which allows remote attackers to cause a denial of service (CPU consumption in the KDC) by sending an unauthenticated AS-REQ or TGS-REQ with a large number of elements in a SEQUENCE OF field over TCP.

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-2026-75092

Leapp-repository: leapp-upgrade-el9toel10: leapp-upgrade-el9toel10: scan_mysql runs mysqld --validate-config as root and can load mysql-writable plugins

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 context, bypassing the packaged MySQL systemd unit that normally starts the daemon as User=mysql. A process compromised as the mysql OS identity can write a version-2 persisted configuration (mysqld-auto.cnf) and a malicious shared object into /var/lib/mysql (a directory owned by mysql). That persisted map can set plugin_dir to /var/lib/mysql and early_plugin_load (or related loader options such as plugin_load / plugin_load_add) so MySQL loads the attacker-controlled object during configuration validation. Plugin loading can reach dlopen() before MySQL’s runtime-user check and before plugin-symbol validation. When an administrator subsequently runs the documented Leapp preupgrade or upgrade workflow, attacker-controlled code can execute as UID 0 with a full capability set in an unconfined SELinux domain (unconfined_t). The attack does not require write access to the default system plugin path under /usr; redirecting plugin_dir via mysql-owned persisted state is sufficient. Ordinary SQL privileges alone (including highly privileged SQL accounts) are not a sufficient startpoint — OS-level execution as the mysql service identity is required, plus later administrator invocation of Leapp.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Red Hat Enterprise Linux 9.6 Extended Update Support Red Hat Openstack Platform 17.1 and 3 more
CVE-2026-112322

Krb5: mit krb5 kadmind unauthenticated cpu dos via auth_gssapi client states cleanup

clean_client() in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) restarts its scan from the head of the client list after each removal, resulting in quadratic CPU cost. Remote attackers can cause a denial of service (CPU consumption in kadmind) by accumulating a large number of AUTH_GSSAPI client entries.

CVSS 3.1 · 7.5 High EPSS 1.0% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Enterprise Linux Enterprise Linux Eus and 4 more
CVE-2026-112323

Krb5: mit krb5 kadmind unauthenticated memory exhaustion via failed auth_gssapi_init requests

The AUTH_GSSAPI handler in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) 1.5.2 and later allows remote attackers to cause a denial of service (memory exhaustion in kadmind) by sending repeated failed AUTH_GSSAPI_INIT requests. Each failed request allocates client state that is only freed after a 15-minute expiration timeout, allowing an attacker to accumulate memory faster than it is reclaimed.

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-2026-112321

Krb5: mit krb5 kadmind unauthenticated memory leak dos via auth_gssapi_init error paths

The AUTH_GSSAPI handler in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) does not free decoded arguments on certain error paths, which allows remote attackers to cause a denial of service (memory exhaustion in kadmind) via crafted AUTH_GSSAPI_INIT requests that trigger authentication failures.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Enterprise Linux Enterprise Linux Eus and 4 more