CVE-2026-26830: Nodejs Child Process Exec Util Format Command Injection
A shell command string is constructed with util.format() and passed to child_process.exec() / execSync(), which executes via /bin/sh -c. util.format()'s %s/%d/%j interpolation does NOT shell-escape its arguments, so any value containing shell metacharacters (quotes, ;, &, |, $(), backticks) breaks out of the surrounding quoted token and lets attackers execut
JSgreprules fetch cve-2026-26830-nodejs-child-process-exec-util-format-command-injection --engine opengrepDescription
A shell command string is constructed with util.format() and passed to child_process.exec() / execSync(), which executes via /bin/sh -c. util.format()'s %s/%d/%j interpolation does NOT shell-escape its arguments, so any value containing shell metacharacters (quotes, ;, &, |, $(), backticks) breaks out of the surrounding quoted token and lets attackers execut
Community feedback
0 rule-level signals from signed-in users.
- Useful reports
- 0
- Context false positives
- 0
- Metadata suggestions
- 0
Contextual precision
Aggregated from approved scan feedback. False-positive reports describe observed scan contexts, not a global rule verdict.
- Findings observed
- 0
- Projects
- 0
- Reporters
- 0
Precision details are collecting more signed-in reports before verdict counts or ratios are emphasized.
No approved finding verdicts yet.
No scan diagnostics reported yet.