CVE-2026-28518Public exploit

Arbitrary file write via unvalidated ZIP paths

Published Mar 3, 2026 · Updated Mar 3, 2026

Path traversal in OpenViking 0.2.1 and earlier allows attackers to write files outside the import directory through a crafted .ovpack. The import_ovpack routine passes unvalidated ZIP member names into relative-path and file-write operations, accepting traversal segments, absolute paths, and drive prefixes. A user must import the malicious archive; resulting writes run with the importing process's privileges and can create or overwrite accessible files.

CVSS severity8.4
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in OpenViking 0.2.1 and earlier allows attackers to write files outside the import directory through a crafted .ovpack. The import_ovpack routine passes unvalidated ZIP member names into relative-path and file-write operations, accepting traversal segments, absolute paths, and drive prefixes. A user must import the malicious archive; resulting writes run with the importing process's privileges and can create or overwrite accessible files.

The record

CVE
CVE-2026-28518
Published
Mar 3, 2026
Updated
Mar 3, 2026
Vendor
Volcengine
Product
OpenViking
Classifications
CWE-22, T1565.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.2.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Volcengine · OpenVikingversion=0 <=0.2.1

Published CVSS scores

7.8VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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