# CVE-2026-25059: OpenList Path Traversal — Fixed in 4.1.10 🐹 🐹 Go Not in CISA KEV HIGH severity # CVE-2026-25059 — OpenList HIGH [Fix: OpenListTeam/OpenList@7b78fed](https://github.com/OpenListTeam/OpenList/commit/7b78fed106382430c69ef351d43f5d09928fff14) CVE-2026-25059 is a high-severity (CVSS 8.8) Path Traversal vulnerability in github.com/OpenListTeam/OpenList/v4. A fix is available for github.com/OpenListTeam/OpenList/v4 — see the affected versions and patch details below. OpenList affected by Path Traversal in file copy and remove handlers Also known as[GHSA-qmj2-8r24-xxcq](/vulnerability/GHSA-qmj2-8r24-xxcq)GO-2026-4396 Published Feb 2, 2026 Updated Oct 28, 2026 Affected 1 pkg Patched 1 / 1 Exploits None indexed Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS) ## Exploitation Status ### No confirmed exploitation observed yet - A successful exploit gives an attacker total control of the affected component, not partial access. - CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment. Exploitation and automatability from CISA’s SSVC triage for CVE-2026-25059. ## EPSS Exploitation Probability [via FIRST.org ↗](https://www.first.org/epss/) 0.7%probability of exploitation in next 30 days Lower Risk0.00% Lower risk than most CVEs52th percentile — riskier than 52% of all scored CVEsHighest risk 0.00%0.39%0.77%1.16%0.0%0.7%May 26Sep 26Nov 26 Probability of exploitation in the next 30 days, from [FIRST.org EPSS](https://www.first.org/epss/). ## How urgent is this, really ## Where this sits among everything scored ## Real-World Exposure 1 pkg affected 🐹`github.com/OpenListTeam/OpenList/v4` Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems. ## Description #### Summary The application contains a Path Traversal vulnerability (CWE-22) in multiple file operation handlers. An authenticated attacker can bypass directory-level authorisation by injecting traversal sequences into filename components, enabling unauthorised file removal and copying across user boundaries within the same storage mount. #### Details The application contains a Path Traversal vulnerability (CWE-22) in multiple file operation handlers in _server/handles/fsmanage.go_. Filename components in `req.Names` are directly concatenated with validated directories using `stdpath.Join`. This allows ".." sequences to bypass path restrictions, enabling users to access other users' files within the same storage mount and perform unauthorized actions such as deletion, renaming, or copying of files. [FsRemove](https://github.com/OpenListTeam/OpenList/blob/5db2172ed681346b69ed468c73c1f01b6ed455ea/server/handles/fsmanage.go#L284-L285): ``` func FsRemove(c *gin.Context) { // ... for _, name := range req.Names { err := fs.Remove(c, stdpath.Join(reqDir, name)) ``` [FsCopy](https://github.com/OpenListTeam/OpenList/blob/5db2172ed681346b69ed468c73c1f01b6ed455ea/server/handles/fsmanage.go#L163-L164): ``` func FsCopy(c *gin.Context) { // ... if !req.Overwrite { for _, name := range req.Names { if res, _ := fs.Get(c.Request.Context(), stdpath.Join(dstDir, name), &fs.GetArgs{NoLog: true}); res != nil { ``` #### PoC Scenario:​ A normal user ("alice") bypasses directory restrictions to read files outside her authorized path. Environment setup: - Local storage mount as '/local'. - An admin file "adminsecret.txt" is placed under /local - Alice has base path '/local/alice'. [https://github.com/user-attachments/assets/5d73bbec-29e5-4c52-8af3-4c70b26d9d0e](https://github.com/user-attachments/assets/5d73bbec-29e5-4c52-8af3-4c70b26d9d0e) #### Impact This vulnerability enables privilege escalation within shared storage environments. An authenticated attacker with basic file operation permissions (remove/copy) can bypass directory-level authorisation controls when multiple users exist within the same storage mount. Attack Requirements: - Authenticated user account (not guest) - Basic file operation permissions (remove/copy) - Multi-user environment within the same storage mount - Knowledge (or ability to guess) the target file's name and path Consequences: - Unauthorised data access: Read, copy, and exfiltrate files from other users' directories - Data destruction: Delete files belonging to other users #### Note This vulnerability was discovered by: - XlabAI Team of Tencent Xuanwu Lab - Atuin Automated Vulnerability Discovery Engine CVE and credit are preferred. If users have any questions regarding the vulnerability details, please feel free to reach out for further discussion. Email [xlabai@tencent.com](mailto:xlabai@tencent.com). The security industry standard [90+30 disclosure policy](https://googleprojectzero.blogspot.com/p/vulnerability-disclosure-policy.html) is followed. Should the aforementioned vulnerabilities remain unfixed after 90 days of submission, all information about the issues will be publicly disclosed. ## Affected Packages 1 total 1 fixed Ecosystem Package Vulnerable range Fix 🐹Go `github.com/OpenListTeam/OpenList/v4` all versions 4.1.10`go get github.com/OpenListTeam/OpenList/v4@v4.1.10` ## Affected Products 1 product · 1 configurations Application `openlist`oplist < 4.1.10 range ## Detection & mitigation playbook Open-source dependency 1. ### Detect Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/OpenListTeam/OpenList/v4, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version. 2. ### Fix Update github.com/OpenListTeam/OpenList/v4 to 4.1.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-25059 is resolved across your whole dependency graph. 3. ### Workarounds Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves. ## Frequently Asked Questions \### Summary The application contains a Path Traversal vulnerability (CWE-22) in multiple file operation handlers. An authenticated attacker can bypass directory-level authorisation by injecting traversal sequences into filename components, enabling unauthorised file removal and copying across user boundaries within the same storage mount. ### Details The application contains a Path Traversal vulnerability (CWE-22) in multiple file operation handlers in \*server/handles/fsmanage.go\*. Filename components in \`req.Names\` are directly concatenated with validated directories using \`stdpath.Join\`. Th O3 Security · Impact-Aware SCA ### Is CVE-2026-25059 in your dependencies? Find it across Go, including transitive dependencies. [Scan my dependencies](/book-demo) [How O3 SCA works](/impact-aware-sca)