alsa-2026:34357
Vulnerability from osv_almalinux
Published
2026-07-01 00:00
Modified
2026-07-07 10:24
Summary
Important: opentelemetry-collector security update
Details

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.

References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "opentelemetry-collector"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.152.1-1.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Collector with the supported components for a AlmaLinux build of OpenTelemetry  \n\nSecurity Fix(es):  \n\n  * github.com/prometheus/prometheus: Prometheus: Denial of Service via uncontrolled memory allocation in remote read endpoint (CVE-2026-42154)\n  * github.com/prometheus/prometheus: Prometheus: Information disclosure of Azure OAuth client secret via config API (CVE-2026-42151)\n  * net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)\n  * golang.org/x/net/idna: golang: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)\n  * golang.org/x/net/html: golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting (CVE-2026-25681)\n  * crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145)\n\n\nFor 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.\n",
  "id": "ALSA-2026:34357",
  "modified": "2026-07-07T10:24:15Z",
  "published": "2026-07-01T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:34357"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-25681"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-27145"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-33811"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-39821"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-42151"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-42154"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2466505"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2466507"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2467822"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2480756"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2480761"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2484207"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-34357.html"
    }
  ],
  "related": [
    "CVE-2026-42154",
    "CVE-2026-42151",
    "CVE-2026-33811",
    "CVE-2026-39821",
    "CVE-2026-25681",
    "CVE-2026-27145"
  ],
  "summary": "Important: opentelemetry-collector security update"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.