Vulnerability in github.com/rclone/rclone (CVE-2026-54572)
Summary
Vulnerability in github.com/rclone/rclone (CVE-2026-54572). Data can be tampered with by attackers. Exploitable via mkdirAll. Mitigation: upgrade to 1.74.4 or later.
Original description
The description as published by the source.
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, with -l/--links, rclone serializes symlinks as .rclonelink text objects and recreates them on a local destination without validating the target, allowing an attacker-controlled remote to plant an escaping symlink and cause a following object write to land outside the destination with attacker-chosen contents. This issue is fixed in version 1.74.4.
Source: NIST National Vulnerability Database 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-2026-54572 has been found in github.com/rclone/rclone.
Attackers can target a specific entry point like mkdirAll 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/rclone/rclone to 1.74.4 or later.
If unsure, ask your IT team or search "github.com/rclone/rclone CVE-2026-54572" on the vendor's site.
CVE-2026-54572 (github.com/rclone/rclone) — CWE-59 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: mkdirAll / OpenFile / symlinkData / file.MkdirAll
Patched: 1.74.4 — 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.
A vulnerability (CWE-59) exists in github.com/rclone/rclone. Attackers reach the vulnerable code path via mkdirAll without authentication.
Check the vendor advisory for the affected versions of github.com/rclone/rclone. Attack surface: mkdirAll / OpenFile / symlinkData / file.MkdirAll.
Severity: High (CVSS 7.5/10). Data can be tampered with by attackers.
Update to 1.74.4.
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/rclone/rclone' . 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
-
1Identify exposure identify
grep -r 'github.com/rclone/rclone' . | 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/rclone/rclone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/rclone/rclone to 1.74.4ステージング環境で 1.74.4 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。
-
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
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2026-54572 rclone
References
- advisory github.com
- patch github.com
- patch github.com
- web github.com
- web nvd.nist.gov
- web github.com