GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-68119 (GCVE-0-2025-68119)

Vulnerability from cvelistv5 – Published: 2026-01-28 19:30 – Updated: 2026-02-26 15:04
VLAI
Title
Unexpected code execution when invoking toolchain in cmd/go
Summary
Downloading and building modules with malicious version strings can cause local code execution. On systems with Mercurial (hg) installed, downloading modules from non-standard sources (e.g., custom domains) can cause unexpected code execution due to how external VCS commands are constructed. This issue can also be triggered by providing a malicious version string to the toolchain. On systems with Git installed, downloading and building modules with malicious version strings can allow an attacker to write to arbitrary files on the filesystem. This can only be triggered by explicitly providing the malicious version strings to the toolchain and does not affect usage of @latest or bare module paths.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-29 04:55 UTC
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
Go toolchain cmd/go Affected: 1.25.0 , < 1.25.6 (semver)
guessed Create a notification for this product.
Credits
splitline (@splitline) from DEVCORE Research Team
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-68119",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-29T04:55:55.432053Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T15:04:45.665Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "cmd/go",
          "product": "cmd/go",
          "vendor": "Go toolchain",
          "versions": [
            {
              "lessThan": "1.25.6",
              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "splitline (@splitline) from DEVCORE Research Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Downloading and building modules with malicious version strings can cause local code execution. On systems with Mercurial (hg) installed, downloading modules from non-standard sources (e.g., custom domains) can cause unexpected code execution due to how external VCS commands are constructed. This issue can also be triggered by providing a malicious version string to the toolchain. On systems with Git installed, downloading and building modules with malicious version strings can allow an attacker to write to arbitrary files on the filesystem. This can only be triggered by explicitly providing the malicious version strings to the toolchain and does not affect usage of @latest or bare module paths."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-28T19:30:30.704Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/736710"
        },
        {
          "url": "https://go.dev/issue/77099"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4338"
        }
      ],
      "title": "Unexpected code execution when invoking toolchain in cmd/go"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2025-68119",
    "datePublished": "2026-01-28T19:30:30.704Z",
    "dateReserved": "2025-12-15T16:48:04.450Z",
    "dateUpdated": "2026-02-26T15:04:45.665Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-68119",
      "date": "2026-09-16",
      "epss": "0.00356",
      "percentile": "0.29188"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-07T01:51:17.000Z",
      "cve": "CVE-2025-68119",
      "id": "msrc_CVE-2025-68119",
      "initial_release_date": "2026-09-03T01:14:12.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Unexpected code execution when invoking toolchain in cmd/go",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2025-68119.json",
      "version": "2"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68119\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2026-01-28T20:16:11.443\",\"lastModified\":\"2026-06-17T09:58:33.560\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Downloading and building modules with malicious version strings can cause local code execution. On systems with Mercurial (hg) installed, downloading modules from non-standard sources (e.g., custom domains) can cause unexpected code execution due to how external VCS commands are constructed. This issue can also be triggered by providing a malicious version string to the toolchain. On systems with Git installed, downloading and building modules with malicious version strings can allow an attacker to write to arbitrary files on the filesystem. This can only be triggered by explicitly providing the malicious version strings to the toolchain and does not affect usage of @latest or bare module paths.\"},{\"lang\":\"es\",\"value\":\"Descargar y construir m\u00f3dulos con cadenas de versi\u00f3n maliciosas puede causar la ejecuci\u00f3n de c\u00f3digo local. En sistemas con Mercurial (hg) instalado, descargar m\u00f3dulos de fuentes no est\u00e1ndar (por ejemplo, dominios personalizados) puede causar la ejecuci\u00f3n de c\u00f3digo inesperada debido a c\u00f3mo se construyen los comandos VCS externos. Este problema tambi\u00e9n puede ser provocado al proporcionar una cadena de versi\u00f3n maliciosa a la cadena de herramientas. En sistemas con Git instalado, descargar y construir m\u00f3dulos con cadenas de versi\u00f3n maliciosas puede permitir a un atacante escribir en archivos arbitrarios en el sistema de archivos. Esto solo puede ser provocado al proporcionar expl\u00edcitamente las cadenas de versi\u00f3n maliciosas a la cadena de herramientas y no afecta el uso de @latest o rutas de m\u00f3dulo bare.\"}],\"affected\":[{\"source\":\"security@golang.org\",\"affectedData\":[{\"vendor\":\"Go toolchain\",\"product\":\"cmd/go\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://pkg.go.dev\",\"packageName\":\"cmd/go\",\"versions\":[{\"version\":\"1.25.0\",\"lessThan\":\"1.25.6\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-29T04:55:55.432053Z\",\"id\":\"CVE-2025-68119\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.24.12\",\"matchCriteriaId\":\"21FD9368-8AB3-404B-8599-BBF64EFE3C7B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.25.0\",\"versionEndExcluding\":\"1.25.6\",\"matchCriteriaId\":\"A547E844-78D2-4B17-B7A9-73E7B503D2CE\"}]}]}],\"references\":[{\"url\":\"https://go.dev/cl/736710\",\"source\":\"security@golang.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://go.dev/issue/77099\",\"source\":\"security@golang.org\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc\",\"source\":\"security@golang.org\",\"tags\":[\"Mailing List\",\"Release Notes\"]},{\"url\":\"https://pkg.go.dev/vuln/GO-2026-4338\",\"source\":\"security@golang.org\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:09:05+00:00",
      "cve": "CVE-2025-68119",
      "id": "CVE-2025-68119",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:fixed": "8",
      "product_status:known_affected": "27",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "cmd/go: cmd/go: Local code execution and arbitrary file write via malicious module version strings",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68119.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-28T16:50:42Z",
      "cve": "CVE-2025-68119",
      "id": "CVE-2025-68119",
      "initial_release_date": "2026-01-17T00:27:56Z",
      "product_status:known_affected": "48",
      "product_status:known_not_affected": "109",
      "product_status:recommended": "262",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68119",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68119.json",
      "version": "32"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-68119\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-29T04:55:55.432053Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-29T16:16:35.294Z\"}}], \"cna\": {\"title\": \"Unexpected code execution when invoking toolchain in cmd/go\", \"credits\": [{\"lang\": \"en\", \"value\": \"splitline (@splitline) from DEVCORE Research Team\"}], \"affected\": [{\"vendor\": \"Go toolchain\", \"product\": \"cmd/go\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.25.0\", \"lessThan\": \"1.25.6\", \"versionType\": \"semver\"}], \"packageName\": \"cmd/go\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://go.dev/cl/736710\"}, {\"url\": \"https://go.dev/issue/77099\"}, {\"url\": \"https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2026-4338\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Downloading and building modules with malicious version strings can cause local code execution. On systems with Mercurial (hg) installed, downloading modules from non-standard sources (e.g., custom domains) can cause unexpected code execution due to how external VCS commands are constructed. This issue can also be triggered by providing a malicious version string to the toolchain. On systems with Git installed, downloading and building modules with malicious version strings can allow an attacker to write to arbitrary files on the filesystem. This can only be triggered by explicitly providing the malicious version strings to the toolchain and does not affect usage of @latest or bare module paths.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2026-01-28T19:30:30.704Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-68119\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-29T16:16:38.174Z\", \"dateReserved\": \"2025-12-15T16:48:04.450Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2026-01-28T19:30:30.704Z\", \"assignerShortName\": \"Go\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.