RHSA-2026:95016: Important: opentelemetry-collector security update
Collector with the supported components for a Red Hat build of OpenTelemetrySecurity Fix(es): net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667) crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031) net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440) net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669) crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943) 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.
Other sources
Important: opentelemetry-collector security update
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/opentelemetry-collectorto a version that resolves this vulnerability.Fixed in 0.158.0-2.el10_0 - Upgrade
Upgrade
redhat/opentelemetry-collectorto a version that resolves this vulnerability.Fixed in 0.158.0-2.el10_0.aa
Event History
Frequently Asked Questions
Which attack classes are addressed by this update?
The update addresses denial-of-service issues involving crafted HTTP Range headers, malformed multipart form parsing, excessive HTTP/2 SETTINGS frames, and multiple ECH outer extension references. It also addresses a man-in-the-middle risk involving untrusted intermediate certificates in crypto/x509.
Which platforms are listed as affected by this advisory?
The advisory lists Red Hat Enterprise Linux offerings for x86_64, IBM z Systems, ARM 64, and little-endian Power, including specified four-year update and Extended Update Support variants. It applies to the Red Hat build of the OpenTelemetry Collector with supported components.