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UnratedFix available

golang: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2026-78669: net/http - track HTTP/2 outbound stream flow-control windows as a delta against a shared connection-level initial window, so a SETTINGS_INITIAL_WINDOW_SIZE change is O(1) instead of iterating over every open stream, preventing CPU exhaustion by a peer sending many SETTINGS frames - CVE-2026-78667: net/http - limit the number of ranges parsed from a Range header in FileServer, ServeContent and ServeFile to 200 (configurable via GODEBUG=httpservecontentmaxranges), ignoring headers with too many ranges to avoid excessive CPU consumption

Products
go-toolset, golang, golang-bin, golang-docs, golang-misc, golang-src, golang-tests
Affected versions
Not specified
Fixed versions
1.22.9-1.el9_2.tuxcare.els30
CVEs
CVE-2026-78667, CVE-2026-78669
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:59 UTC · Revision 1

Source evidence

golang: Fix of 2 CVEs

core-osv · Original source

Published 23 Oct 2026, 12:22 UTC

- CVE-2026-78669: net/http - track HTTP/2 outbound stream flow-control windows as a delta against a shared connection-level initial window, so a SETTINGS_INITIAL_WINDOW_SIZE change is O(1) instead of iterating over every open stream, preventing CPU exhaustion by a peer sending many SETTINGS frames - CVE-2026-78667: net/http - limit the number of ranges parsed from a Range header in FileServer, ServeContent and ServeFile to 200 (configurable via GODEBUG=httpservecontentmaxranges), ignoring headers with too many ranges to avoid excessive CPU consumption

osv:CLSA-2026-1792758155

go-toolset

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

golang

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

golang-bin

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

golang-docs

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

golang-misc

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

golang-src

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

golang-tests

Fixed versions: 1.22.9-1.el9_2.tuxcare.els30

Complete source record
{
  "id": "c5283e1aedb91796e2eb67f0db281f7a03ea4a2048ea63ffa2fc8da069c093e3",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1792758155",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "golang: Fix of 2 CVEs",
    "summary": "- CVE-2026-78669: net/http - track HTTP/2 outbound stream flow-control windows as a delta against a shared connection-level initial window, so a SETTINGS_INITIAL_WINDOW_SIZE change is O(1) instead of iterating over every open stream, preventing CPU exhaustion by a peer sending many SETTINGS frames - CVE-2026-78667: net/http - limit the number of ranges parsed from a Range header in FileServer, ServeContent and ServeFile to 200 (configurable via GODEBUG=httpservecontentmaxranges), ignoring headers with too many ranges to avoid excessive CPU consumption",
    "evidence": "osv:CLSA-2026-1792758155",
    "products": [
      {
        "name": {
          "value": "go-toolset",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-bin",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-docs",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-misc",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-src",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-tests",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.22.9-1.el9_2.tuxcare.els30",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1792758155",
      "aliases": [
        "CLSA-2026-1792758155"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "go-toolset",
            "purl": "pkg:rpm/tuxcare/go-toolset?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "golang",
            "purl": "pkg:rpm/tuxcare/golang?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-bin",
            "purl": "pkg:rpm/tuxcare/golang-bin?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-docs",
            "purl": "pkg:rpm/tuxcare/golang-docs?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-misc",
            "purl": "pkg:rpm/tuxcare/golang-misc?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-src",
            "purl": "pkg:rpm/tuxcare/golang-src?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.22.9-1.el9_2.tuxcare.els30"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-tests",
            "purl": "pkg:rpm/tuxcare/golang-tests?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1792758155.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:58.755933479Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-78667",
        "CVE-2026-78669"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1792758155.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-78667",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-78669"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-78667",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-78669",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 450276,
  "published_at": "2026-10-23T12:22:48+00:00"
}