CVE-2026-28518: Openviking Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-rpqr-j937-6qr9
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CVSS 7.8
CWE-22
Published
Advisory Summary

CVE-2026-28518 is a HIGH (CVSS 7.8) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Openviking libraries in the PyPI ecosystem. The issue involves openviking contains a path traversal vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2026-28518 at a Glance

CVE Identifier CVE-2026-28518
GHSA Identifier GHSA-rpqr-j937-6qr9
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Openviking
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-28518

To remediate this vulnerability, upgrade all affected Openviking dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openviking fixed: Latest secure release 
pip install openviking>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show openviking

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-28518, inspect your installed packages using pip:

pip show openviking

Analyze the terminal output to locate any version of Openviking in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show openviking command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Openviking, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

OpenViking versions 0.2.1 and prior, fixed in commit 46b3e76, contain a path traversal vulnerability in the .ovpack import handling that allows attackers to write files outside the intended import directory. Attackers can craft malicious ZIP archives with traversal sequences, absolute paths, or drive prefixes in member names to overwrite or create arbitrary files with the importing process privileges.

CVE-2026-28518 Affected Openviking Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
openviking
pypi/openviking
PyPI
≤ 0.2.1

References

NVD — CVE-2026-28518 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28518
Openviking Source Repository REPOSITORY
https://github.com/volcengine/OpenViking/issues/342
Security Fix Commit FIX COMMIT
https://github.com/volcengine/OpenViking/commit/46b3e76e28b9b3eee73693720c9ec48820228b72
Openviking Source Repository REPOSITORY
https://github.com/volcengine/OpenViking
www.vulncheck.com/advisories/openviki... WEB
https://www.vulncheck.com/advisories/openviking-ovpack-import-zip-slip-path-traversal

Frequently Asked Questions

What is CVE-2026-28518?
CVE-2026-28518 is a security vulnerability in Openviking involving OpenViking contains a Path Traversal vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Openviking versions are affected?
Affected versions include releases prior to current release patches across affected packages: openviking.
What version fixes CVE-2026-28518?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is openviking affected?
Yes, openviking is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-28518?
CVE-2026-28518 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-28518?
CVE-2026-28518 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check PyPI dependencies for CVE-2026-28518?
Run the dependency tree command: 'pip show openviking'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-rpqr-j937-6qr9",
  "modified" : "2026-03-04T20:25:40Z",
  "published" : "2026-03-03T15:31:41Z",
  "aliases" : [ "CVE-2026-28518" ],
  "summary" : "OpenViking contains a Path Traversal vulnerability",
  "details" : "OpenViking versions 0.2.1 and prior, fixed in commit 46b3e76, contain a path traversal vulnerability in the .ovpack import handling that allows attackers to write files outside the intended import directory. Attackers can craft malicious ZIP archives with traversal sequences, absolute paths, or drive prefixes in member names to overwrite or create arbitrary files with the importing process privileges.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "openviking"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.2.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-28518"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/volcengine/OpenViking/issues/342"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/volcengine/OpenViking/commit/46b3e76e28b9b3eee73693720c9ec48820228b72"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/volcengine/OpenViking"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openviking-ovpack-import-zip-slip-path-traversal"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-04T20:25:40Z",
    "nvd_published_at" : "2026-03-03T15:16:20Z"
  }
}