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Github CVE-2026-25761

HIGH
Command Injection (CWE-77)
2026-02-09 security-advisories@github.com
8.8
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 09, 2026 - 21:15 nvd
HIGH 8.8

DescriptionGitHub Advisory

Super-linter is a combination of multiple linters to run as a GitHub Action or standalone. From 6.0.0 to 8.3.0, the Super-linter GitHub Action is vulnerable to command injection via crafted filenames. When this action is used in downstream GitHub Actions workflows, an attacker can submit a pull request that introduces a file whose name contains shell command substitution syntax, such as $(...). In affected Super-linter versions, runtime scripts may execute the embedded command during file discovery processing, enabling arbitrary command execution in the workflow runner context. This can be used to disclose the job’s GITHUB_TOKEN depending on how the workflow configures permissions. This vulnerability is fixed in 8.3.1.

AnalysisAI

Command injection in GitHub Super-linter versions 6.0.0 through 8.3.0 allows attackers to execute arbitrary commands in workflow runner contexts by submitting pull requests with maliciously crafted filenames containing shell command substitution syntax. An attacker exploiting this vulnerability can access sensitive workflow credentials, including GITHUB_TOKEN, depending on permission configurations. The vulnerability affects Super-linter when used as a GitHub Action and has no available patch at this time.

Technical ContextAI

Classified as CWE-77 (Command Injection). Affects Super-Linter. Super-linter is a combination of multiple linters to run as a GitHub Action or standalone. From 6.0.0 to 8.3.0, the Super-linter GitHub Action is vulnerable to command injection via crafted filenames. When this action is used in downstream GitHub Actions workflows, an attacker can submit a pull request that introduces a file whose name contains shell command substitution syntax, such as $(...). In affected Super-linter versions, runtime scripts may execute the embedded command during file discov

RemediationAI

Fixed in version 8.3.1.. Restrict network access to the affected service where possible.

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CVE-2026-25761 vulnerability details – vuln.today

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