Path Traversal in github.com/openziti/zrok/v2 (CVE-2026-45576)
Summary
Path traversal in github.com/openziti/zrok/v2 (CVE-2026-45576). Data can be tampered with by attackers. Exploitable via href. Mitigation: upgrade to 2.0.3 or later.
Original description
The description as published by the source.
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.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-45576 has been found in github.com/openziti/zrok/v2.
Attackers can target a specific entry point like href over the network to misuse the product.
Data can be tampered with by attackers. CVSS score: 7.5/10.
What to do: upgrade github.com/openziti/zrok/v2 to 2.0.3 or later.
If unsure, ask your IT team or search "github.com/openziti/zrok/v2 CVE-2026-45576" on the vendor's site.
CVE-2026-45576 (github.com/openziti/zrok/v2) — CWE-22 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: href / FilesystemTarget.WriteStream
Patched: 2.0.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Path traversal (CWE-22) exists in github.com/openziti/zrok/v2. Attackers reach the vulnerable code path via href without authentication.
Check the vendor advisory for the affected versions of github.com/openziti/zrok/v2. Attack surface: href / FilesystemTarget.WriteStream.
Severity: High (CVSS 7.5/10). Data can be tampered with by attackers.
Update to 2.0.3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/openziti/zrok/v2' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'github.com/openziti/zrok/v2' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
github.com/openziti/zrok/v2を grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade github.com/openziti/zrok/v2 to 2.0.3ステージング環境で 2.0.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- web github.com
- web github.com