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Crabbox CVE-2026-8634

| EUVD-2026-30418 CRITICAL
Code Injection (CWE-94)
2026-05-14 VulnCheck GHSA-fm77-94qm-4894
9.3
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

6
Analysis Updated
May 14, 2026 - 20:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
May 14, 2026 - 20:22 vuln.today
cvss_changed
CVSS changed
May 14, 2026 - 20:22 NVD
9.1 (CRITICAL) 9.3 (CRITICAL)
Source Code Evidence Fetched
May 14, 2026 - 19:47 vuln.today
Analysis Generated
May 14, 2026 - 19:47 vuln.today
CVE Published
May 14, 2026 - 19:18 nvd
CRITICAL 9.1

DescriptionNVD

Crabbox prior to v0.12.0 contains an environment variable exposure vulnerability that allows attackers with access to a malicious or compromised repository to forward local secrets such as API tokens, cloud credentials, and broker tokens into the remote command environment. Attackers can exploit overly permissive environment variable allowlisting in repo-local Crabbox configuration to serialize sensitive environment variables into remote command execution, exposing credentials to the remote environment.

AnalysisAI

Crabbox versions before 0.12.0 leak local secrets through environment variable forwarding during remote command execution. When users run commands against malicious or compromised repositories, attackers exploit overly permissive environment variable allowlisting in repository-local configuration files to exfiltrate API tokens, cloud credentials, and broker tokens into the remote execution environment. …

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RemediationAI

Within 24 hours: Inventory all Crabbox deployments and identify current versions in use. Within 7 days: Upgrade all instances to Crabbox v0.12.0 or later; implement --allow-env explicit allowlisting in configuration and review existing repository configurations for overly permissive settings. …

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CVE-2026-8634 vulnerability details – vuln.today

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