CVE Tools

CVE-2026-65921

Potential path traversal leading to unauthorized file writes

Published: Jul 27, 2026Updated: Jul 30, 2026 Sources: CVE List NVDCWE-22

Description

A path validation weakness in archive extraction/write handling allows entries with traversal sequences to be written outside the intended build artifacts location.

In plain language

AI Act now

CVE-2026-65921 is a serious file-writing flaw in JFrog Artifactory where a crafted archive can cause files to be written to unintended locations; typical small businesses that use Artifactory should treat this as urgent because real-world exploitation has been reported.

Executive summary

CVE-2026-65921 is a path traversal weakness (CWE-22) in JFrog Artifactory’s handling of untrusted archive uploads/extraction, enabling attackers to write files outside the intended directory (unauthorized file writes) by supplying crafted archive paths with traversal sequences; exploitation has been reported in the wild.

If affected, business impact
Unauthorized file writesSystem or app file overwriteService outage or instabilityPossible data exposure

What to do now

  1. Check your JFrog Artifactory version and whether your setup accepts/uploads/extracts untrusted archive files.
  2. If you are on a version older than the fixes below, schedule an upgrade to one of the fixed versions: 7.111.18, 7.117.25, 7.125.18, 7.133.27, 7.146.34, or 7.161.15.
  3. After upgrading, verify the exact running Artifactory version matches the fixed release and confirm archive upload/extraction workflows still operate correctly.
  4. Review Artifactory activity logs around the time of any suspicious archive uploads and look for unusual file write or extraction behavior.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

Affected Products

jfrog
commercial·USaka jfrog artifactory, artifactory self-hosted

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

2

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