Github
CVE-2026-25761
HIGH
Severity by source
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
Lifecycle Timeline
2DescriptionGitHub 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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Same weakness CWE-77 – Command Injection
View allSame technique Command Injection
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External POC / Exploit Code
Leaving vuln.today