RHSA-2026:3089

Vulnerability from csaf_redhat - Published: 2026-02-23 14:46 - Updated: 2026-04-10 22:22
Summary
Red Hat Security Advisory: Red Hat Developer Hub 1.8.4 release.
Severity
Important
Notes
Topic: Red Hat Developer Hub 1.8.4 has been released.
Details: Red Hat Developer Hub (RHDH) is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters (AKS, EKS, GKE). The core features of RHDH include a single pane of glass, a centralized software catalog, self-service via golden path templates, and Tech Docs. RHDH is extensible by plugins.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted HTTP request containing a massive number of query parameters will cause the application to consume an excessive amount of memory, eventually causing the application to crash or become unresponsive, resulting in a denial of service.

CWE-770 - Allocation of Resources Without Limits or Throttling
Vendor Fix For more about Red Hat Developer Hub, see References links https://access.redhat.com/errata/RHSA-2026:3089
Workaround Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security (TLS) session resumption when certificate authority (CA) settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing a client or server to establish a connection that should have been rejected. This could lead to an authentication bypass under specific conditions.

Vendor Fix For more about Red Hat Developer Hub, see References links https://access.redhat.com/errata/RHSA-2026:3089

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        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-68121",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68121"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/737700",
          "url": "https://go.dev/cl/737700"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/77217",
          "url": "https://go.dev/issue/77217"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/K09ubi9FQFk",
          "url": "https://groups.google.com/g/golang-announce/c/K09ubi9FQFk"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-4337",
          "url": "https://pkg.go.dev/vuln/GO-2026-4337"
        }
      ],
      "release_date": "2026-02-05T17:48:44.141000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-02-23T14:46:08+00:00",
          "details": "For more about Red Hat Developer Hub, see References links",
          "product_ids": [
            "Red Hat Developer Hub 1.8:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:6e76191bf1d5afa5ee76330bf6c8860889e0d10661e4633dbb50254ebacfccd9_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:3089"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Developer Hub 1.8:registry.redhat.io/rhdh/rhdh-hub-rhel9@sha256:66396a9445845a4437304aa5b7c441d90cd1494361d60b2165895f7cf9e2016f_amd64",
            "Red Hat Developer Hub 1.8:registry.redhat.io/rhdh/rhdh-operator-bundle@sha256:a375ee40f1921cbf9dd534820f8ff4efa9b7675992aa2a1361bd8ec24913b42b_amd64",
            "Red Hat Developer Hub 1.8:registry.redhat.io/rhdh/rhdh-rhel9-operator@sha256:6e76191bf1d5afa5ee76330bf6c8860889e0d10661e4633dbb50254ebacfccd9_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption"
    }
  ]
}


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Sightings

Author Source Type Date

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.


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Detection rules are retrieved from Rulezet.

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