zrok copy writes attacker-controlled WebDAV paths outside the destination root (CVE-2026-45576) | HOL Guard CVE

High · CVSS 8.3CVE-2026-45576

zrok copy writes attacker-controlled WebDAV paths outside the destination root

Answer in brief

CVE-2026-45576 records a High severity (CVSS 8.3) vulnerability in zrok copy writes attacker-controlled WebDAV paths outside the destination root. The current sources do not mark it as known exploited. The current feed maps openziti/zrok (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 16, 2026Updated Jul 16, 2026Source checked Sep 19, 2026First seen by HOL Jul 16, 2026Material review Jul 16, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps openziti/zrok (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
openziti/zrokgeneric	>= 0.4.23, < 2.0.3	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for openziti/zrok.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 16, 2026

Sources and claim methodology

Upstream source description

zrok is software for sharing web services, files, and network resources. From 0.4.23 until 2.0.3, `zrok2 copy` stores attacker-controlled WebDAV or zrok drive paths such as /../outside.txt in the source inventory and passes them to FilesystemTarget.WriteStream, allowing the sync pipeline to write files outside the selected local filesystem destination root. This issue is fixed in version 2.0.3.

Quoted source text, attributed separately from HOL analysis.