{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61725", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-10T18:59:00.046Z", "datePublished": "2026-10-30T22:10:55.526Z", "dateUpdated": "2026-10-30T22:10:55.526Z"}, "containers": {"cna": {"title": "sevenz-rust2: unchecked 7z entry paths permit traversal and absolute-path file overwrites", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-23", "lang": "en", "description": "CWE-23: Relative Path Traversal", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/hasenbanck/sevenz-rust2/security/advisories/GHSA-qh76-45cr-8xrc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/hasenbanck/sevenz-rust2/security/advisories/GHSA-qh76-45cr-8xrc"}, {"name": "https://github.com/hasenbanck/sevenz-rust2/commit/ef760b61f3535ac8b93006212aef41bfebc237eb", "tags": ["x_refsource_MISC"], "url": "https://github.com/hasenbanck/sevenz-rust2/commit/ef760b61f3535ac8b93006212aef41bfebc237eb"}], "affected": [{"vendor": "hasenbanck", "product": "sevenz-rust2", "versions": [{"version": "< 0.21.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-30T22:10:55.526Z"}, "descriptions": [{"lang": "en", "value": "sevenz-rust2 is a Rust-native 7z compressor and `decompress`or. Prior to 0.21.1, extracting an attacker-supplied 7z archive can write or overwrite files outside the destination directory. In `src/util/decompress.rs`, `decompress_impl` computes each destination with `dest.join(entry.name())` without normalizing the archive's UTF-16 entry name or verifying containment, and `default_entry_extract_fn` writes to it with `File::create`. Parent-directory components escape the extraction root, and an absolute entry path makes the join discard the destination entirely. The convenience entry points `decompress`, `decompress_file`, `decompress_with_password`, and `decompress_file_with_password` all use this default path. Overwriting writable configuration, startup, cron, or build files can lead to code execution or persistence. The archive bytes are the attacker-controlled trust boundary, including for applications that automatically unpack uploaded or otherwise untrusted archives. This issue is fixed in version 0.21.1."}], "source": {"advisory": "GHSA-qh76-45cr-8xrc", "discovery": "UNKNOWN"}}}}

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