CVE-2026-67438 (GCVE-0-2026-67438)

Vulnerability from cvelistv5 – Published: 2026-07-29 20:53 – Updated: 2026-07-30 15:18
VLAI
Title
OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check
Summary
OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0.
Severity
6.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
OliveTin OliveTin Affected: >= 3000.2.0, < 3000.17.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-67438",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-30T14:19:29.634217Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-30T15:18:25.719Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OliveTin",
          "vendor": "OliveTin",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3000.2.0, \u003c 3000.17.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-29T20:53:09.524Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65"
        },
        {
          "name": "https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232"
        },
        {
          "name": "https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0"
        }
      ],
      "source": {
        "advisory": "GHSA-xc5w-4v5w-7x65",
        "discovery": "UNKNOWN"
      },
      "title": "OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-67438",
    "datePublished": "2026-07-29T20:53:09.524Z",
    "dateReserved": "2026-07-29T15:07:24.992Z",
    "dateUpdated": "2026-07-30T15:18:25.719Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-67438",
      "date": "2026-08-01",
      "epss": "0.00995",
      "percentile": "0.59225"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-67438\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-29T21:17:48.120\",\"lastModified\":\"2026-07-30T19:21:23.297\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"OliveTin\",\"product\":\"OliveTin\",\"versions\":[{\"version\":\"\u003e= 3000.2.0, \u003c 3000.17.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.6,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.7,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-30T14:19:29.634217Z\",\"id\":\"CVE-2026-67438\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"references\":[{\"url\":\"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check\", \"source\": {\"advisory\": \"GHSA-xc5w-4v5w-7x65\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"OliveTin\", \"product\": \"OliveTin\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 3000.2.0, \u003c 3000.17.0\"}]}], \"references\": [{\"url\": \"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65\", \"name\": \"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232\", \"name\": \"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0\", \"name\": \"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-07-29T20:53:09.524Z\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-67438\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-30T14:19:29.634217Z\"}}}], \"references\": [{\"url\": \"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-07-30T14:19:40.409Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-67438\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-29T20:53:09.524Z\", \"dateReserved\": \"2026-07-29T15:07:24.992Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-07-29T20:53:09.524Z\", \"assignerShortName\": \"GitHub_M\"}",
      "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.