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CVE-2026-45579 Elastic Security · Elastic

Detect DIRAC RequestManager eval() Remote Code Execution (CVE-2026-45579) in Elastic Security

Detects exploitation attempts and successful compromise of DIRAC's RequestManager component via CVE-2026-45579, a CWE-95 (Eval Injection) vulnerability where untrusted RPC input passed to RequestManager is evaluated via Python's eval() function, resulting in unauthenticated or low-privilege remote code execution. Affected DIRAC (pip package) versions are >=6,<8.0.79, >=8.1.0a1,<9.0.22, and >=9.1.0,<9.1.10. A public PoC exists (GHSA-9jpv-c7p4-997x). Detection focuses on anomalous eval-triggering payloads sent to DIRAC RequestManager RPC/DISET endpoints, resulting child process spawns from DIRAC service processes, and post-exploitation artifacts consistent with grid/HPC computing infrastructure compromise.

MITRE ATT&CK

Tactic
Initial Access Execution Lateral Movement

Elastic Detection Query

Elastic Security (Elastic)
eql
process where event.type == "start" and
  process.parent.name : ("python", "python3") and
  process.parent.command_line : ("*RequestManager*", "*dirac-service*", "*dirac-request*") and
  process.command_line : ("*eval(*", "*__import__*", "*os.system*", "*subprocess*", "*socket.socket*", "*/bin/sh*", "*base64*")
critical severity medium confidence

Elastic EQL rule identifying process spawns from DIRAC RequestManager/service Python parent processes with command lines containing eval-injection markers indicative of CVE-2026-45579 exploitation.

Data Sources

Elastic Endpoint SecurityAuditbeat

Required Tables

process

False Positives & Tuning

  • Administrator-run diagnostic or debug scripts on DIRAC hosts
  • Automated test suites validating RequestManager RPC handling
  • Legitimate configuration management tools that call similar Python primitives

Other platforms for CVE-2026-45579


Testing Methodology

Validate this detection against 3 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.

  1. Test 1Simulate DIRAC RequestManager eval() RCE via crafted RPC payload

    Expected signal: Process creation event showing python3 (DIRAC RequestManager service) spawning /bin/sh -c "id > /tmp/dirac_poc_out" or equivalent child process with eval-injection command-line markers

  2. Test 2Simulate reverse shell spawned from DIRAC service process

    Expected signal: Bash process with /dev/tcp redirection spawned by a process whose parent command line references RequestManager/dirac-service, plus an outbound TCP connection on port 4444

  3. Test 3Simulate malicious eval() injection payload execution on Windows lab host

    Expected signal: DeviceProcessEvents entry showing python.exe spawning cmd.exe/whoami with a parent command line simulation referencing RequestManager, writing output to a temp file

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