MediumVulnerabilityLLM-specific

CVE-2026-59807: Composio SDK path validation bypass enables sensitive file read

Source: NVD(opens in a new tab)
Identifier: CVE-2026-59807
Published: July 8, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.4%

Summary

CVE-2026-59807 affects the Composio SDK before 0.2.32-beta.283. A missing assertSafeFileUploadPath check in the readFileFromDisk function within tool-file-uploads.ts lets attackers use prompt injection to manipulate file_uploadable parameters, pointing them at sensitive paths such as SSH private keys. The CLI then uploads those credential files to attacker-controlled storage. VulnCheck rates the issue CVSS 4.0 8.9 (HIGH), and NIST has not yet provided an NVD assessment.

Mitigation

Fixed in @composio/cli 0.2.32-beta.283, per the linked release and commit references.

Details

Scores and exploitation

CVSS score: 6.8(medium)
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack vector: network
Attack complexity: high
Privileges required: none
User interaction: none
EPSS: 0.4%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on October 11, 2026.
Disclosure date: July 8, 2026

Weaknesses and techniques

Weakness (CWE): CWE-73
AI threat technique (MITRE ATLAS): AML.T0051

Classification

Attack type: Prompt injection
Attack sophistication: Moderate
AI component targeted: Agent
Impact: Confidentiality
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-59807

First tracked: July 8, 2026 at 08:07 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Summary

Mitigation

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