CVE-2024-46977Public exploitNetwork attack vector

Authenticated file disclosure via unsanitized screen paths

Published Oct 2, 2024 · Updated Oct 31, 2024

Path traversal in OpenC3 COSMOS before 5.19.0 allows remote authenticated users to read server-side .txt files through the screen API. ScreensController#show passes attacker-controlled target and screen parameters through Screen.find into LocalMode.open_local_file, which concatenates them into a path and opens it without rejecting traversal segments. System authorization and reachable files ending in .txt are required; disclosure is limited by the COSMOS server process's file permissions.

CVSS severity5.3
Medium
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in OpenC3 COSMOS before 5.19.0 allows remote authenticated users to read server-side .txt files through the screen API. ScreensController#show passes attacker-controlled target and screen parameters through Screen.find into LocalMode.open_local_file, which concatenates them into a path and opens it without rejecting traversal segments. System authorization and reachable files ending in .txt are required; disclosure is limited by the COSMOS server process's file permissions.

The record

CVE
CVE-2024-46977
Published
Oct 2, 2024
Updated
Oct 31, 2024
Vendor
OpenC3
Product
COSMOS
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.19.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenC3 · COSMOSversion=< 5.19.0

Published CVSS scores

5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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