CVE-2026-23949 (GCVE-0-2026-23949)

Vulnerability from cvelistv5 – Published: 2026-01-20 00:36 – Updated: 2026-01-20 17:02
VLAI?
Title
jaraco.context Has a Path Traversal Vulnerability
Summary
jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue.
Severity ?
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
jaraco jaraco.context Affected: >= 5.2.0, < 6.1.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23949",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-20T17:02:42.295346Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-20T17:02:50.613Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "jaraco.context",
          "vendor": "jaraco",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 5.2.0, \u003c 6.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-20T00:36:23.777Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2"
        },
        {
          "name": "https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9"
        },
        {
          "name": "https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91"
        },
        {
          "name": "https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76"
        }
      ],
      "source": {
        "advisory": "GHSA-58pv-8j8x-9vj2",
        "discovery": "UNKNOWN"
      },
      "title": "jaraco.context Has a Path Traversal Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-23949",
    "datePublished": "2026-01-20T00:36:23.777Z",
    "dateReserved": "2026-01-19T14:49:06.312Z",
    "dateUpdated": "2026-01-20T17:02:50.613Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23949\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-01-20T01:15:57.723\",\"lastModified\":\"2026-03-11T23:12:19.323\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue.\"},{\"lang\":\"es\",\"value\":\"jaraco.context, un paquete de software de c\u00f3digo abierto que proporciona algunos decoradores y gestores de contexto \u00fatiles, tiene una vulnerabilidad de recorrido de ruta Zip Slip en la funci\u00f3n `jaraco.context.tarball()` a partir de la versi\u00f3n 5.2.0 y anterior a la versi\u00f3n 6.1.0. La vulnerabilidad puede permitir a los atacantes extraer archivos fuera del directorio de extracci\u00f3n previsto cuando se procesan archivos tar maliciosos. El filtro strip_first_component divide la ruta en la primera barra \u00ab/\u00bb y extrae el segundo componente, al tiempo que permite secuencias \u00ab../\u00bb. Las rutas como \u00abdummy_dir/../../etc /passwd\u00bb se convierten en \u00ab../../etc /passwd\u00bb. Tenga en cuenta que esto tambi\u00e9n sufre un ataque de archivo tar anidado con archivos tar de varios niveles, como `dummy_dir/inner.tar.gz`, donde inner.tar.gz incluye un recorrido `dummy_dir/../../config/.env` que tambi\u00e9n se traduce a `../../config/.env`. La versi\u00f3n 6.1.0 contiene un parche para el problema.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jaraco:jaraco.context:*:*:*:*:*:python:*:*\",\"versionStartIncluding\":\"5.2.0\",\"versionEndExcluding\":\"6.1.0\",\"matchCriteriaId\":\"A34A13FF-2FDE-4605-81B7-D5C6507952A1\"}]}]}],\"references\":[{\"url\":\"https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Mitigation\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-23949\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-20T17:02:42.295346Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-20T17:02:47.507Z\"}}], \"cna\": {\"title\": \"jaraco.context Has a Path Traversal Vulnerability\", \"source\": {\"advisory\": \"GHSA-58pv-8j8x-9vj2\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 8.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"jaraco\", \"product\": \"jaraco.context\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 5.2.0, \u003c 6.1.0\"}]}], \"references\": [{\"url\": \"https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2\", \"name\": \"https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9\", \"name\": \"https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91\", \"name\": \"https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76\", \"name\": \"https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-01-20T00:36:23.777Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-23949\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-20T17:02:50.613Z\", \"dateReserved\": \"2026-01-19T14:49:06.312Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-01-20T00:36:23.777Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.