JFrog disclosed CVE-2026-65921, a high-severity path traversal vulnerability in Artifactory that can let an authenticated attacker write files outside the intended build artifacts directory. The flaw stems from improper path validation during archive extraction and related write handling, allowing traversal sequences to escape the expected destination path. The issue is tracked as CWE-22 and carries a CVSS v3.1 score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
JFrog said multiple Artifactory version ranges are affected and published patched releases at the upper bounds of those ranges, along with a security advisory and release references for remediation. The vulnerability can impact confidentiality, integrity, and availability, and the CVE record credits discovery to Matthew Bryant of OpenAI. Organizations running Artifactory should identify affected deployments and apply JFrog’s fixes to prevent unauthorized file writes via crafted archive contents or write operations.

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JFrog published CVE-2026-65921, a high-severity path traversal vulnerability in Artifactory caused by improper path validation during archive extraction or write handling. The issue can allow unauthorized file writes outside the intended build artifacts directory, and patched versions were identified for affected release ranges.
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