Vulnerability · Published Jul 16, 2026 · Assigned by GitHub_M

CVE-2026-45576zrok copy writes attacker-controlled WebDAV paths outside the destination root

High 8.3

In plain English

A high-severity path traversal in zrok from openziti. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.3High

Exploit odds (30 days)0.5%top 57.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/openziti/zrok	no fix listed	GHSA-c656-jcx2-7pqj
Go	github.com/openziti/zrok	no fix listed	GO-2026-5315
Go	github.com/openziti/zrok/v2	2.0.3	GHSA-c656-jcx2-7pqj
Go	github.com/openziti/zrok/v2	2.0.3	GO-2026-5315

Affected products (as reported)

Vendor	Product	Versions
openziti	zrok	>= 0.4.23, < 2.0.3

Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N

References

https://github.com/openziti/zrok/security/advisories/GHSA-c656-jcx2-7pqj x_refsource_CONFIRM
https://github.com/openziti/zrok/commit/a5811e61589d2f804267c6de4a9056db1bdea457 x_refsource_MISC
https://github.com/openziti/zrok/releases/tag/v2.0.3 x_refsource_MISC