Threats Tagged 'cve-2026-8927'

PostgreSQL is an advanced object-relational database management system (DBMS). Security Fix(es): * postgresql: PostgreSQL: Arbitrary code execution via integer wraparound in tsvector and tsquery functions (CVE-2026-14662) * postgresql: PostgreSQL psql: Arbitrary command execution via untrusted data in COPY FROM STDIN (CVE-2026-6464) * postgresql: PostgreSQL: Arbitrary code execution via logical decoding plugin (CVE-2026-6471) * postgresql: PostgreSQL: Arbitrary code execution via type confusion with "internal" arguments (CVE-2026-14680) * postgresql: PostgreSQL: Arbitrary code execution via heap buffer overflow in regexp (CVE-2026-14664) * postgresql: pltcl: plperl: PostgreSQL: Arbitrary code execution in 32-bit pltcl and plperl (CVE-2026-14677) * postgresql-fuzzystrmatch: PostgreSQL fuzzystrmatch: Arbitrary code execution via integer wraparound (CVE-2026-15742) * postgresql: PostgreSQL: Arbitrary code execution via type confusion in cursor lifecycle (CVE-2026-16239) * postgresql: PostgreSQL: Arbitrary code execution via long POSIX timezone abbreviation (CVE-2026-14669) * postgresql: PostgreSQL: Stack buffer overflow via OUT parameter count manipulation (CVE-2026-14679) * postgresql: PostgreSQL: Arbitrary code execution via type confusion in 'refint' module (CVE-2026-14671) * postgresql: PostgreSQL: Arbitrary code execution via plperl tied hash heap buffer overflow (CVE-2026-14670) * postgresql: PostgreSQL: Information disclosure via type confusion in ctid selectivity estimator (CVE-2026-14668) * postgresql: PostgreSQL pg_dump: Arbitrary code execution via crafted transform lists (CVE-2026-19385) * postgresql: PostgreSQL: Privilege escalation via SQL injection in EXTRACT() deparse (CVE-2026-15741) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fix(es): * curl: libcurl: Improper certificate validation due to cached TLS settings reuse (CVE-2025-14819) * curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication (CVE-2026-1965) * curl: curl: Unauthorized access due to improper HTTP proxy connection reuse (CVE-2026-3784) * curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect (CVE-2026-3783) * curl: curl: Man-in-the-middle attack via SSH host key bypass (CVE-2026-9547) * libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse (CVE-2026-8932) * curl: curl: Information disclosure via incorrect .netrc password lookup (CVE-2026-8926) * curl: curl: Insecure connection establishment due to TLS configuration mismatch (CVE-2026-8286) * curl: libcurl: Unauthorized connection reuse due to a logical error (CVE-2026-8458) * curl: curl: Cookie injection via malicious HTTP server using super cookies (CVE-2026-8924) * curl: curl: Information disclosure via incorrect Digest authentication header reuse (CVE-2026-11856) * curl: curl: SSH host verification bypass when using schemeless URLs with SFTP/SCP (CVE-2026-12064) * curl: Information disclosure due to uncleared proxy authentication state (CVE-2026-8927) * libcurl: libcurl: Information disclosure due to failure to clear proxy authentication credentials (CVE-2026-9079) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The cert-manager Operator for Red Hat OpenShift builds on top of Kubernetes, introducing certificate authorities and certificates as first-class resource types in the Kubernetes API. This makes it possible to provide certificates-as-a-service to developers working within your Kubernetes cluster.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.22.14. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:66356 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html/release_notes/ Security Fix(es): * curl: curl: Insecure connection establishment due to TLS configuration mismatch (CVE-2026-8286) * curl: curl: Man-in-the-middle attack via SSH host key bypass (CVE-2026-9547) * bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards (CVE-2026-11721) * sqlite: SQLite: Arbitrary code execution and crash via heap-based buffer overflow in FTS5 (CVE-2026-11824) * bind: bind9: Unexpected exit with NSEC and NSEC3 both present (CVE-2026-13204) * dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die() (CVE-2026-15816) * kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133) * unbound: Unbound: Denial of Service via malformed EDNS Report-Channel option (CVE-2026-55973) * glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" (CVE-2026-58014) * glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive (CVE-2026-58015) * kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login (CVE-2026-72693) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. All OpenShift Container Platform 4.22 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli.

This update for curl fixes the following issues - CVE-2026-8286: wrong STARTTLS connection reuse (bsc#1268402). - CVE-2026-8458: wrong reuse for different services (bsc#1268407). - CVE-2026-8924: traling dot domain super cookie (bsc#1268409). - CVE-2026-8927: env-set cross-proxy Digest auth state leak (bsc#1268413). - CVE-2026-9079: stale proxy password leak (bsc#1268415). - CVE-2026-9080: UAF after pause in socket callback (bsc#1268416). - CVE-2026-9545: exposing HTTP/3 early data (bsc#1268417). - CVE-2026-9547: SSH improper host validation (bsc#1268420). - CVE-2026-10536: HTTP/2 stream-dependency tree UAF (bsc#1268422). - CVE-2026-12064: proto-default skips SSH verification (bsc#1268427).

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different services.

When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial transfer authenticates against `proxyA` using Digest auth, a subsequent transfer routed through `proxyB` erroneously leaks the `Proxy-Authorization:` header intended solely for `proxyA`.