RHSA-2026:65116: Important: opentelemetry

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/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499) - net/mail: golang: Go net/mail: Denial of Service via crafted email inputs (CVE-2026-39820) - mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header (CVE-2026-42504) - github.com/open-telemetry/opentelemetry-go: go.opentelemetry.io/otel/baggage: go.opentelemetry.io/otel/propagation: OpenTelemetry-Go: Denial of Service via oversized baggage headers (CVE-2026-41178) - encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818) - net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860) - net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853) - html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858) - crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862) - encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859) 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. 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 - 2467809 - CVE-2026-42499 net/mail: golang: net/mail: Denial of Service via pathological email address parsing - BZ - 2467820 - CVE-2026-39820 net/mail: golang: Go net/mail: Denial of Service via crafted email inputs - BZ - 2484204 - CVE-2026-42504 mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header - BZ - 2484830 - CVE-2026-41178 github.com/open-telemetry/opentelemetry-go: go.opentelemetry.io/otel/baggage: go.opentelemetry.io/otel/propagation: OpenTelemetry-Go: Denial of Service via oversized baggage headers - BZ - 2515815 - CVE-2026-33818 encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal - BZ - 2515820 - CVE-2026-56860 net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution - BZ - 2515827 - CVE-2026-56853 net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service - BZ - 2515838 - CVE-2026-56858 html/template: golang: Go html/template: Cross-Site Scripting via pathological input - BZ - 2515839 - CVE-2026-56862 crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages - BZ - 2515840 - CVE-2026-56859 encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue 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-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | x86_64 | | opentelemetry-collector-0.152.1-2.el10_2.x86_64.rpm | SHA-256: 984cb2124a10255971c38165502c25c03e194703569af3fe882565ce855a3bb3 | Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | x86_64 | | opentelemetry-collector-0.152.1-2.el10_2.x86_64.rpm | SHA-256: 984cb2124a10255971c38165502c25c03e194703569af3fe882565ce855a3bb3 | Red Hat Enterprise Linux for IBM z Systems 10 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | s390x | | opentelemetry-collector-0.152.1-2.el10_2.s390x.rpm | SHA-256: 832a99938d54152c4e83455ccafbb18c1d484d6a4d043c738bf28ed40302f177 | Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | s390x | | opentelemetry-collector-0.152.1-2.el10_2.s390x.rpm | SHA-256: 832a99938d54152c4e83455ccafbb18c1d484d6a4d043c738bf28ed40302f177 | Red Hat Enterprise Linux for Power, little endian 10 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | ppc64le | | opentelemetry-collector-0.152.1-2.el10_2.ppc64le.rpm | SHA-256: 23cd0d97c0e12c8ce0109f7cfa4b36c31768a5d7249c0c46e2d400b1521d5973 | Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | ppc64le | | opentelemetry-collector-0.152.1-2.el10_2.ppc64le.rpm | SHA-256: 23cd0d97c0e12c8ce0109f7cfa4b36c31768a5d7249c0c46e2d400b1521d5973 | Red Hat Enterprise Linux for ARM 64 10 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | aarch64 | | opentelemetry-collector-0.152.1-2.el10_2.aarch64.rpm | SHA-256: 41b36719c029110634d7d7826583b42538e98b6982f55f34b18731abbb82ba58 | Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | aarch64 | | opentelemetry-collector-0.152.1-2.el10_2.aarch64.rpm | SHA-256: 41b36719c029110634d7d7826583b42538e98b6982f55f34b18731abbb82ba58 | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | aarch64 | | opentelemetry-collector-0.152.1-2.el10_2.aarch64.rpm | SHA-256: 41b36719c029110634d7d7826583b42538e98b6982f55f34b18731abbb82ba58 | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | s390x | | opentelemetry-collector-0.152.1-2.el10_2.s390x.rpm | SHA-256: 832a99938d54152c4e83455ccafbb18c1d484d6a4d043c738bf28ed40302f177 | Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | ppc64le | | opentelemetry-collector-0.152.1-2.el10_2.ppc64le.rpm | SHA-256: 23cd0d97c0e12c8ce0109f7cfa4b36c31768a5d7249c0c46e2d400b1521d5973 | Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | x86_64 | | opentelemetry-collector-0.152.1-2.el10_2.x86_64.rpm | SHA-256: 984cb2124a10255971c38165502c25c03e194703569af3fe882565ce855a3bb3 | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | x86_64 | | opentelemetry-collector-0.152.1-2.el10_2.x86_64.rpm | SHA-256: 984cb2124a10255971c38165502c25c03e194703569af3fe882565ce855a3bb3 | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | aarch64 | | opentelemetry-collector-0.152.1-2.el10_2.aarch64.rpm | SHA-256: 41b36719c029110634d7d7826583b42538e98b6982f55f34b18731abbb82ba58 | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | ppc64le | | opentelemetry-collector-0.152.1-2.el10_2.ppc64le.rpm | SHA-256: 23cd0d97c0e12c8ce0109f7cfa4b36c31768a5d7249c0c46e2d400b1521d5973 | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 | SRPM | | opentelemetry-collector-0.152.1-2.el10_2.src.rpm | SHA-256: 24b0fd58b56af196824b67b77e17ec6f414c2c1e048ad037fcb0bd6c7409f4b2 | | s390x | | opentelemetry-collector-0.152.1-2.el10_2.s390x.rpm | SHA-256: 832a99938d54152c4e83455ccafbb18c1d484d6a4d043c738bf28ed40302f177 |