{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23949", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-19T14:49:06.312Z", "datePublished": "2026-01-20T00:36:23.777Z", "dateUpdated": "2026-01-20T17:02:50.613Z"}, "containers": {"cna": {"title": "jaraco.context Has a Path Traversal Vulnerability", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "jaraco", "product": "jaraco.context", "versions": [{"version": ">= 5.2.0, < 6.1.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-20T00:36:23.777Z"}, "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."}], "source": {"advisory": "GHSA-58pv-8j8x-9vj2", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-01-20T17:02:42.295346Z", "id": "CVE-2026-23949", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-20T17:02:50.613Z"}}]}}

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{"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."}], "id": "CVE-2026-23949", "lastModified": "2026-01-20T01:15:57.723", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-01-20T01:15:57.723", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91"}, {"source": "security-advisories@github.com", "url": "https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9"}, {"source": "security-advisories@github.com", "url": "https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2"}, {"source": "security-advisories@github.com", "url": "https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "jaraco.context: jaraco.context: Path traversal via malicious tar archives", "id": "2431026", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431026"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-22", "details": ["A flaw was found in jaraco.context. The `jaraco.context.tarball()` function is vulnerable to a Zip Slip path traversal when processing malicious tar archives. A remote attacker can exploit this by crafting a specially designed tar file, which, when extracted, allows files to be written outside the intended directory. This could lead to arbitrary file overwrites or information disclosure on the system."], "mitigation": {"lang": "en:us", "value": "The vulnerability arises from processing untrusted tar archives. To mitigate the risk, Red Hat recommends avoiding the processing of tar archives from untrusted sources. If processing untrusted archives is unavoidable, ensure that the environment where `jaraco.context.tarball()` is used is isolated and has minimal privileges."}, "name": "CVE-2026-23949", "public_date": "2026-01-20T00:36:23Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23949\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23949\nhttps://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91\nhttps://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9\nhttps://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2\nhttps://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76"], "statement": "This vulnerability is rated Important for Red Hat products that utilize `jaraco.context` versions prior to 6.1.0 and process untrusted tar archives. A path traversal flaw in the `jaraco.context.tarball()` function allows attackers to extract files outside the intended directory due to improper handling of `../` sequences, including in nested tarballs. This could lead to arbitrary file write.", "threat_severity": "Important"}

{"created": "2026-01-20T08:40:00.330419+00:00", "updated": "2026-01-20T08:40:00.330452+00:00", "vendors": ["jaraco", "jaraco$PRODUCT$jaraco.context"]}