CVE-2026-42055

CVE-2026-42055 affects NGINX Plus and NGINX Open Source via the ngx_http_proxy_v2_module and ngx_http_grpc_module. A remote, unauthenticated attacker can exploit scenarios where proxy_http_version 2 or grpc_pass is used, ignore_invalid_headers is off, and large_client_header_buffers is set to mul...

CVE-2026-9256

NGINX Plus and NGINX Open Source expose a vulnerability in the ngx_http_rewrite_module when a rewrite directive uses distinct, overlapping PCRE captures (e.g., ^/((.*))$) and the replacement references multiple captures (e.g., $1$2) in redirects or arguments. An unauthenticated attacker can send ...

CVE-2026-4775

The CVE-2026-4775 entry concerns the libtiff library. A signed integer overflow in putcontig8bitYCbCr44tile can be triggered by a specially crafted TIFF file, leading to an out-of-bounds heap write. Documented impact includes denial of service (crash) or arbitrary code execution. Affected details...

CVE-2026-48864

CVE-2026-48864 affects libsolv. The issue is a heap buffer overflow during decompression of attacker-controlled data in .solv files, caused by insufficient input validation in repopagestore. This can lead to out-of-bounds memory access with potential information disclosure, alteration of program ...

CVE-2026-6846

CVE-2026-6846 describes a heap-buffer-overflow in GNU binutils during linking when processing a specially crafted XCOFF object file. The vulnerability affects the XCOFF handling code, where a crafted file can trigger arbitrary code execution or a denial of service. The advisory notes local exploi...

CVE-2026-55654

CVE-2026-55654 describes a heap out-of-bounds read in OpenSSH during GSSAPI indicator cleanup when a trailing NULL termination is missing in the auth-indicators array. A remote attacker in configurations using GSSAPI authentication with Kerberos could trigger a crash/abort in the SSH authenticati...

CVE-2026-2100

CVE-2026-2100 – p11-kit : A flaw allows a remote attacker to trigger a NULL dereference by calling C_DeriveKey on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL, potentially causing an application-level denial of service or other undefined states. Public...

CVE-2026-4424

CVE-2026-4424 affects libarchive’s RAR archive processing. A heap out-of-bounds read arises from improper validation of the LZSS sliding window size after transitions between compression methods, enabling a remote attacker to disclose sensitive heap memory without authentication. Documents consis...

CVE-2026-13595

CVE-2026-13595 affects libblkid in util-linux. During nested partition probing, BSD/Minix/Solaris x86/UnixWare probers cache a parent partition pointer in a dynamically allocated array; on reallocation, the pointer becomes stale, causing a heap use-after-free read. An attacker with access to a cr...

CVE-2026-0990

Vulnerability: CVE-2026-0990 affects libxml2. An uncontrolled recursion bug in xmlCatalogXMLResolveURI is triggered when a delegate URI entry references itself, allowing a remote attacker to craft an XML catalog that causes infinite recursion and stack exhaustion, resulting in DoS via application...

CVE-2026-0989

CVE-2026-0989 concerns a flaw in the RelaxNG parser in libxml2 where external schema inclusions can cause unbounded recursion, leading to stack exhaustion and denial-of-service crashes. The connected documents confirm this issue across multiple distributions (e.g., Amazon Linux 2/ALAS advisories,...

CVE-2026-55653

CVE-2026-55653 affects OpenSSH and describes a double-free in the DH-GEX client path during FIPS known-group validation, allowing a malicious SSH server to terminate the client process and cause a Denial of Service. The issue is tied to processing attacker-controlled DH-GEX group parameters and i...

CVE-2026-42010

CVE-2026-42010 affects gnutls where servers using RSA-PSK incorrectly match usernames containing a NUL character, causing truncation and an authentication bypass. A remote attacker could exploit by sending a crafted username to gain unauthorized access. Connected advisories confirm a patch: Root ...

CVE-2026-13757

CVE-2026-13757 affects p11-kit. The RPC attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() can form a mutually-recursive call chain with no recursion depth limit when handling nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TE...

CVE-2026-3184

Affects util-linux, specifically the login(1) utility when invoked with -h. The root cause is improper hostname canonicalization, which can modify the supplied remote hostname before setting PAM_RHOST. This weakness can bypass host-based PAM access control rules that rely on fully qualified domai...

CVE-2026-71226

CVE-2026-71226 affects libkcapi’s one-shot AIO path. The root cause is memory corruption when an uncanceled AIO request returns an error before all submitted IOCBs are drained, allowing later writes from the kernel into caller-owned output buffers. The available sources describe the vulnerability...

CVE-2026-0964

CVE-2026-0964 is reported as a path-traversal vulnerability in libssh’s SCP handling (ssh_scp_pull_request), allowing a malicious SCP server to reference paths outside the working directory and potentially overwrite local files. The issue is documented across multiple advisories (ALAS2023-2026-14...

CVE-2026-0966

CVE-2026-0966 affects the libssh library with a buffer underflow in ssh_get_hexa() on invalid input. The issue occurs because ssh_get_hexa() is used by ssh_get_fingerprint_hash() and the deprecated ssh_print_hexa(), and also in gssapi logging. Remote triggering is possible when GSSAPI authenticat...

CVE-2026-4426

CVE-2026-4426 concerns libarchive’s zisofs decompression logic where an ISO9660 Rock Ridge extension field pz_log2_bs is not properly validated. This Undefined Behavior can lead to incorrect memory allocation and a denial-of-service via crafted ISO files, with remote attack vector and user intera...

CVE-2026-6732

CVE-2026-6732 affects libxml2 and is triggered when parsing an XSD-validated document that contains an internal entity reference, causing a type confusion error and a DoS via crashes. The vulnerability is tied to how libxml2 processes crafted XML Schema Definition inputs, with the impact describe...

CVE-2026-5121

CVE-2026-5121 and CVE-2026-4424 affect libarchive, with a vulnerability in ISO9660 image processing (32-bit) that can cause a heap overflow when processing a crafted ISO9660 image, potentially enabling arbitrary code execution. Described as a 32-bit integer overflow in zisofs block pointer alloca...

CVE-2026-42009

CVE-2026-42009 affects the GnuTLS library, where DTLS packet reordering uses a comparator that mishandles duplicate sequence numbers. This can cause unstable DTLS packet ordering or undefined behavior, leading to a denial of service. The vulnerability is described consistently across NVD entries ...

CVE-2026-9150

Libsolv contains a stack-based buffer overflow in the Debian metadata parser when processing specially crafted Debian repository metadata. The vulnerability is triggered by malicious SHA384/SHA512 checksum tags, causing memory corruption and a denial of service. Affected component: libsolv’s Debi...

CVE-2025-14821

CVE-2025-14821 concerns the libssh library. Multiple connected records describe a flaw where an insecure Windows default configuration causes libssh to load configuration files from C:\etc, which can be created or modified by unprivileged local users. This enables local man-in-the-middle attacks,...

CVE-2026-5704

CVE-2026-5704 affects the tar component. A flaw allows a remote attacker to craft an archive that injects hidden files with attacker-controlled content, bypassing pre-extraction inspection and potentially introducing malicious files to a system without detection. The vulnerability is described wi...

CVE-2026-9149

The CVE-2026-9149 entry describes a heap buffer overflow in libsolv, triggered when processing a crafted .solv file that contains negative size values fed to the repo_add_solv function. This results in an undersized allocation followed by an out-of-bounds write, enabling a potential denial of ser...

CVE-2026-3832

CVE-2026-3832 affects the gnutls library. A logic error in processing multi-record OCSP responses during TLS handshakes can cause a client with OCSP verification enabled to incorrectly accept a revoked server certificate, potentially compromising trust. The available documents describe the vulner...

CVE-2026-0992

CVE-2026-0992 in libxml2 describes an uncontrolled resource consumption vulnerability. A remote attacker can supply crafted XML catalogs containing repeated elements pointing to the same downstream catalog, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU us...

CVE-2026-3833

Technical details for CVE-2026-3833 are not publicly available in the provided documents; OpenSUSE/PTSecurity entries reference fixes but do not expose affected components, impact, or mitigation here. Monitor for updates.

CVE-2026-15370

CVE-2026-15370 is a vulnerability in libssh where, during SFTP server directory listing, the longname field is built by unsafe string concatenation into a fixed-size stack buffer. This can allow sufficiently long attacker-controlled filenames to overflow the stack, potentially crashing the server...

CVE-2026-59843

CVE-2026-59843 : A flaw in libssh allows a remote authenticated peer to advertise a zero maximum packet size in SSH_MSG_CHANNEL_OPEN, causing subsequent channel writes to loop indefinitely and consume CPU, leading to a denial of service. According to Red Hat, there is no workaround available. The...

CVE-2026-59850

CVE-2026-59850 affects libssh: after a channel is closed, data callbacks can run on freed data, causing use-after-free and crashes. The issue is fixed in libssh 0.11.5; SUSE/OpenSUSE advisories map this CVE to the libssh update to 0.11.5 with related fixes. Affected behavior is use-after-free on ...

CVE-2026-71227

CVE-2026-71227 affects libkcapi. The issue arises in the AIO path where reusing an AIO-enabled handle after a prior completion error can cause _kcapi_aio_read_all() to enter a non-terminating wait loop, leading to persistent denial of service and unresponsiveness of the affected application or th...

CVE-2026-71225

CVE-2026-71225 (libkcapi) : A flaw in libkcapi affects one-shot symmetric cipher operations for inputs over 64 KiB in stateful modes (CTR, CBC). The IV is incorrectly reused across internal data chunks, which can weaken confidentiality by exposing relationships in encrypted plaintext and may affe...

CVE-2026-5745

Libarchive exposes a NULL pointer dereference in the ACL parser (archive_acl_from_text_nl) when processing malformed ACL strings, leading to DoS via a crash in applications using the libarchive API (e.g., bsdtar). Affected component: the ACL parsing logic in libarchive. Underlying cause: insuffic...

CVE-2026-59847

CVE-2026-59847 affects the OpenSSH/libssh stack via an integrity downgrade caused by incorrect AES-GCM tag verification when using the OpenSSL backend. The provided connected documents indicate the issue in libssh before 0.11.5, with the vulnerability enabling an in-path attacker to compromise in...

CVE-2026-6844

CVE-2026-6844 affects the readelf utility in the binutils package. A crafted ELF file can trigger two DoS conditions: (1) resource exhaustion leading to out-of-memory and (2) a null pointer dereference causing a segmentation fault. Both can render readelf unresponsive or crash, resulting in denia...

CVE-2026-59845

CVE-2026-59845 describes a vulnerability in the libssh library where, when using the ProxyCommand feature, an unchecked fork() failure can be stored as PID -1. During cleanup, signals may be sent across the caller’s process tree, enabling local denial of service. The Red Hat advisory confirms thi...

CVE-2026-59846

CVE-2026-59846 affects libssh: a flaw in ProxyCommand handling where a malicious username expanded via %r can inject shell metacharacters, exposing environment variables and causing unintended shell behavior. No specific exploit/public-fix details are provided in the connected documents; remediat...

CVE-2026-1584

The CVE-2026-1584 entry concerns gnutls. A remote, unauthenticated attacker can trigger a NULL pointer dereference during TLS via a crafted ClientHello that has an invalid PSK binder, causing a server crash and remote DoS. Connected documents confirm this vulnerability across multiple sources (NV...

CVE-2026-6845

CVE-2026-6845 : A flaw in binutils/readelf allows a local attacker to trigger a Denial of Service by processing a specially crafted ELF file. The vulnerability arises during ELF processing and can cause the host to become unresponsive due to excessive resource consumption or a program crash. CVSS...

CVE-2026-2625

The CVE-2026-2625 flaw affects rust-rpm-sequoia. A crafted RPM file can trigger an error in the OpenPGP signature parsing code during verification, causing the rpm process to terminate unconditionally and leading to an application‑level DoS (unavailability to process RPMs for signature verificati...

CVE-2026-59851

A vulnerability in libssh affects servers with GSSAPIKeyExchange enabled. The gssapi-keyex path does not verify that the authenticated Kerberos principal is authorized for the requested local user, enabling authenticated clients to log in as arbitrary users. This is reported across multiple sourc...

CVE-2026-59848

CVE-2026-59848 concerns libssh. A malicious SFTP server may send responses for unknown request IDs that libssh clients keep queued, causing unbounded memory growth and client-side denial of service. Affected component: libssh’s SFTP client handling. Root cause: responses for unknown IDs are queue...

CVE-2026-59849

CVE-2026-59849 affects libssh. Connected advisories show a denial-of-service caused by a logic/loop in automatic certificate-based public key authentication that can loop when certificates are missing or repeatedly rejected. Victim scenario: libssh clients may experience indefinite looping, leadi...

CVE-2026-59842

Affects: libssh. In server-side GSSAPI key exchange, a Curve25519 public key shorter than the expected length is copied without proper length validation, causing an out-of-bounds heap read. This could let a remote unauthenticated attacker disclose small amounts of server memory. Mitigation: vendo...

CVE-2026-59844

CVE-2026-59844 affects libssh: a remote authenticated client can send SSH_FXP_READ with an arbitrarily large length to a libssh SFTP server, causing excessive memory allocation and potential exhaustion via repeated requests. Documents confirm the flaw and its impact (memory exhaustion) across mul...