Judge0 is an open-source online code execution system. The application does not account for symlinks placed inside the sandbox directory, which can be leveraged by an attacker to write to arbitrary files and gain code execution outside of the sandbox. When executing a submission, Judge0 writes a run_script to the sandbox directory. The security issue is that an attacker can create a symbolic link (symlink) at the path run_script before this code is executed, resulting in the f.write writing to an arbitrary file on the unsandboxed system. An attacker can leverage this vulnerability to overwrite scripts on the system and gain code execution outside of the sandbox.
CVE-2024-28185
This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 7.1% (94th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Public exploit code is available (Metasploit, public exploit)
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v3
- 10.0
- EG Score
- 10.0CRITICALmedium confidence
- EG Risk
- 86EG Risk 86/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity100% × 45%Exploitation65% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix. - EPSS PROB
- 7.1%
- EPSS %ILE
- 94th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
April 18, 2024
Last Modified
April 15, 2026
Advisory Details (3)
Auto-updated Oct 3, 2026Sandbox Escape via Symbolic Link · Advisory · judge0/judge0 · GitHub
https://github.com/judge0/judge0/security/advisories/GHSA-h9g2-45c8-89cfcommit 846d58390261 (judge0/judge0)
Fix landed in judge0/judge0 commit 846d58390261 — awaiting tagged release
https://github.com/judge0/judge0/commit/846d5839026161bb299b7a35fd3b2afb107992fcjudge0/app/jobs/isolate_job.rb at v1.13.0 · judge0/judge0 · GitHub
https://github.com/judge0/judge0/blob/v1.13.0/app/jobs/isolate_job.rb#L197-L201Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 29× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 186 total refreshes for this CVE.
- 2026-10-09 20:05 UTCEPSS rescore
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- 2026-10-04 03:38 UTCOSV refresh
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- 2026-09-30 17:01 UTCEG score recompute
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- 2026-09-14 18:14 UTCOSV refresh
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- 2026-07-25 08:11 UTCOSV refresh
- 2026-07-24 14:16 UTCEPSS rescore
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- 2026-07-23 02:35 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Metasploitexploit/linux/http/judge0_sandbox_escape_cve_2024_28189✓ verifiedFirst seen Mar 4, 2024
Judge0 sandbox escape
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2024-28185?
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What is the CVSS score of CVE-2024-28185?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2024-28185
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