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golang: Fix of CVE-2026-27139

Type: advisorySources: OSV

- CVE-2026-27139: populate FileInfo with an fstatat relative to the directory descriptor instead of a path-based lstat in File.ReadDir and File.Readdir, so a FileInfo can no longer describe a file outside the os.Root it was opened in

Products
go-toolset, golang, golang-bin, golang-docs, golang-misc, golang-race, golang-src, golang-tests
Affected versions
Not specified
Fixed versions
1.25.7-1.el9_6.tuxcare.els17
CVEs
CVE-2026-27139
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 10:54 UTC · Revision 1

Source evidence

golang: Fix of CVE-2026-27139

core-osv · Original source

Published 16 Sept 2026, 10:00 UTC

- CVE-2026-27139: populate FileInfo with an fstatat relative to the directory descriptor instead of a path-based lstat in File.ReadDir and File.Readdir, so a FileInfo can no longer describe a file outside the os.Root it was opened in

osv:CLSA-2026-1789552828

go-toolset

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang-bin

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang-docs

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang-misc

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang-race

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang-src

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

golang-tests

Fixed versions: 1.25.7-1.el9_6.tuxcare.els17

Complete source record
{
  "id": "17a0901aaeb7ba5c3458f1fcec10552115e9eca3cc3996575e950e6faa1f0b4a",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1789552828",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "golang: Fix of CVE-2026-27139",
    "summary": "- CVE-2026-27139: populate FileInfo with an fstatat relative to the directory descriptor instead of a path-based lstat in File.ReadDir and File.Readdir, so a FileInfo can no longer describe a file outside the os.Root it was opened in",
    "evidence": "osv:CLSA-2026-1789552828",
    "products": [
      {
        "name": {
          "value": "go-toolset",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-bin",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-docs",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-misc",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-race",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-src",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "golang-tests",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.25.7-1.el9_6.tuxcare.els17",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1789552828",
      "aliases": [
        "CLSA-2026-1789552828"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "go-toolset",
            "purl": "pkg:rpm/tuxcare/go-toolset?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang",
            "purl": "pkg:rpm/tuxcare/golang?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-bin",
            "purl": "pkg:rpm/tuxcare/golang-bin?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-docs",
            "purl": "pkg:rpm/tuxcare/golang-docs?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-misc",
            "purl": "pkg:rpm/tuxcare/golang-misc?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-race",
            "purl": "pkg:rpm/tuxcare/golang-race?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-src",
            "purl": "pkg:rpm/tuxcare/golang-src?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.25.7-1.el9_6.tuxcare.els17"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-tests",
            "purl": "pkg:rpm/tuxcare/golang-tests?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789552828.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:34.864831816Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-27139"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1789552828.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-27139"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-27139",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447766,
  "published_at": "2026-09-16T10:00:38+00:00"
}