This Red Hat security advisory addresses multiple critical and high-severity vulnerabilities in the opentelemetry-collector package for RHEL 10, including a critical (CVSS 9.1) gRPC-Go authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186) and high-severity flaws in Go's net/url, crypto/x509, crypto/tls, and the go-jose library. The fixed versions for the underlying components, per authoritative NVD data, are Go 1.25.8, grpc 1.79.3, and go-jose 3.0.5 or 4.1.4. Administrators must apply the Red Hat-provided update to the opentelemetry-collector package to remediate these issues.
Red Hat Product Errata RHSA-2026:19135 - Security Advisory Issued: 2026-05-19 Updated: 2026-05-19 RHSA-2026:19135 - Security Advisory Overview Updated Packages Synopsis Important: opentelemetry-collector security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for opentelemetry-collector is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description Collector with the supported components for a Red Hat build of OpenTelemetry Security Fix(es): net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186) github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object (CVE-2026-34986) crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application (CVE-2026-33810) golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282) crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 10 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64 Red Hat Enterprise Linux for IBM z Systems 10 s390x Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x Red Hat Enterprise Linux for Power, little endian 10 ppc64le Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le Red Hat Enterprise Linux for ARM 64 10 aarch64 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x Fixes BZ - 2445356 - CVE-2026-25679 net/url: Incorrect parsing of IPv6 host literals in net/url BZ - 2449833 - CVE-2026-33186 google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation BZ - 2455470 - CVE-2026-34986 github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object BZ - 2456333 - CVE-2026-32281 crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation BZ - 2456335 - CVE-2026-33810 crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application BZ - 2456336 - CVE-2026-32282 golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root BZ - 2456338 - CVE-2026-32283 crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages BZ - 2456339 - CVE-2026-32280 crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building CVEs CVE-2026-25679 CVE-2026-32280 CVE-2026-32281 CVE-2026-32282 CVE-2026-32283 CVE-2026-33186 CVE-2026-33810 CVE-2026-34986 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 10 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 x86_64 opentelemetry-collector-0.144.0-2.el10_2.x86_64.rpm SHA-256: 1ad2a3007aa3515176cc2398583539d9f60048838b8ec9ae86f4f4e81bdc67d6 Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 x86_64 opentelemetry-collector-0.144.0-2.el10_2.x86_64.rpm SHA-256: 1ad2a3007aa3515176cc2398583539d9f60048838b8ec9ae86f4f4e81bdc67d6 Red Hat Enterprise Linux for IBM z Systems 10 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 s390x opentelemetry-collector-0.144.0-2.el10_2.s390x.rpm SHA-256: b03b605405e85c4154b7e7c6830e4559ad95f40ff119068034eeb1e6fe3a8505 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 s390x opentelemetry-collector-0.144.0-2.el10_2.s390x.rpm SHA-256: b03b605405e85c4154b7e7c6830e4559ad95f40ff119068034eeb1e6fe3a8505 Red Hat Enterprise Linux for Power, little endian 10 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 ppc64le opentelemetry-collector-0.144.0-2.el10_2.ppc64le.rpm SHA-256: c4da3d7b11609a98f850c8307692c83796d2c85865125fddd6a7989e09da4299 Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 ppc64le opentelemetry-collector-0.144.0-2.el10_2.ppc64le.rpm SHA-256: c4da3d7b11609a98f850c8307692c83796d2c85865125fddd6a7989e09da4299 Red Hat Enterprise Linux for ARM 64 10 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 aarch64 opentelemetry-collector-0.144.0-2.el10_2.aarch64.rpm SHA-256: 9507a30bd2347672e1cf506596e385e9b873af3223b6dce18d0eb9b2e04b6b10 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 aarch64 opentelemetry-collector-0.144.0-2.el10_2.aarch64.rpm SHA-256: 9507a30bd2347672e1cf506596e385e9b873af3223b6dce18d0eb9b2e04b6b10 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 aarch64 opentelemetry-collector-0.144.0-2.el10_2.aarch64.rpm SHA-256: 9507a30bd2347672e1cf506596e385e9b873af3223b6dce18d0eb9b2e04b6b10 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 s390x opentelemetry-collector-0.144.0-2.el10_2.s390x.rpm SHA-256: b03b605405e85c4154b7e7c6830e4559ad95f40ff119068034eeb1e6fe3a8505 Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 ppc64le opentelemetry-collector-0.144.0-2.el10_2.ppc64le.rpm SHA-256: c4da3d7b11609a98f850c8307692c83796d2c85865125fddd6a7989e09da4299 Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 x86_64 opentelemetry-collector-0.144.0-2.el10_2.x86_64.rpm SHA-256: 1ad2a3007aa3515176cc2398583539d9f60048838b8ec9ae86f4f4e81bdc67d6 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 x86_64 opentelemetry-collector-0.144.0-2.el10_2.x86_64.rpm SHA-256: 1ad2a3007aa3515176cc2398583539d9f60048838b8ec9ae86f4f4e81bdc67d6 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 aarch64 opentelemetry-collector-0.144.0-2.el10_2.aarch64.rpm SHA-256: 9507a30bd2347672e1cf506596e385e9b873af3223b6dce18d0eb9b2e04b6b10 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 ppc64le opentelemetry-collector-0.144.0-2.el10_2.ppc64le.rpm SHA-256: c4da3d7b11609a98f850c8307692c83796d2c85865125fddd6a7989e09da4299 Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 SRPM opentelemetry-collector-0.144.0-2.el10_2.src.rpm SHA-256: ed6a90056996b28ab3c3d1f2f9a89cd7e915277043012f0cf3dd2297d7388642 s390x opentelemetry-collector-0.144.0-2.el10_2.s390x.rpm SHA-256: b03b605405e85c4154b7e7c6830e4559ad95f40ff119068034eeb1e6fe3a8505 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .