AlmaLinux alert ALSA-2026:34359 (opentelemetry-collector)

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[Announce] [Security Advisory] ALSA-2026:34359: opentelemetry-collector security update (Important)
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Tue, 07 Jul 2026 14:08:05 +0000
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<0100019f3ce84e7e-5281e7c6-5036-409e-bc4e-34dac157a6d3-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-07-07

Summary:

Collector with the supported components for a AlmaLinux build of OpenTelemetry  

Security Fix(es):  

  * github.com/prometheus/prometheus: Prometheus: Denial of Service via uncontrolled memory
allocation in remote read endpoint (CVE-2026-42154)
  * github.com/prometheus/prometheus: Prometheus: Information disclosure of Azure OAuth client
secret via config API (CVE-2026-42151)
  * net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME
(CVE-2026-33811)
  * golang.org/x/net/idna: golang: golang.org/x/net/idna: Privilege escalation via incorrect
Punycode label processing (CVE-2026-39821)
  * golang.org/x/net/html: golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting
(CVE-2026-25681)
  * crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN
entries (CVE-2026-27145)


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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2026-34359.html

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Kind regards,
AlmaLinux Team
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