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Vulnerability record · CVE-2026-25063 · published 29 January 2026

CVE-2026-25063: Gradle-completion os command injection vulnerability

Gradle · Gradle Completion

gradle-completion provides Bash and Zsh completion support for Gradle. A command injection vulnerability was found in gradle-completion up to and including 9.3.0 that allows arbitrary code execution when a user triggers Bash tab completion in a project containing a malicious Gradle build file. The `gradle-completion` script for Bash fails to adequately sanitize Gradle task names and task descriptions, allowing command injection via a malicious Gradle build file when the user completes a command in Bash (without them explicitly running any task in the build). For example, given a task description that includes a string between backticks, then that string would be evaluated as a command when presenting the task description in the completion list. While task execution is the core feature of Gradle, this inherent execution may lead to unexpected outcomes. The vulnerability does not affect zsh completion. The first patched version is 9.3.1. As a workaround, it is possible and effective to temporarily disable bash completion for Gradle by removing `gradle-completion` from `.bashrc` or `.bash_profile`.

8.3 CVSS 4.0 High EPSS 0.80% · top 45.1% CWE-78 · OS command injectionCWE-157 · CWE-157
8.3CVSS 4.0 base score
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

gradle-completion provides Bash and Zsh completion support for Gradle. A command injection vulnerability was found in gradle-completion up to and including 9.3.0 that allows arbitrary code execution when a user triggers Bash tab completion in a project containing a malicious Gradle build file. The `gradle-completion` script for Bash fails to adequately sanitize Gradle task names and task descriptions, allowing command injection via a malicious Gradle build file when the user completes a command in Bash (without them explicitly running any task in the build). For example, given a task description that includes a string between backticks, then that string would be evaluated as a command when presenting the task description in the completion list. While task execution is the core feature of Gradle, this inherent execution may lead to unexpected outcomes. The vulnerability does not affect zsh completion. The first patched version is 9.3.1. As a workaround, it is possible and effective to temporarily disable bash completion for Gradle by removing `gradle-completion` from `.bashrc` or `.bash_profile`.

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:H/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/gradle/gradle-completion/commit/ecacc32bb882210e5d37cd79a74de1af0d0ccad7 Patch
https://github.com/gradle/gradle-completion/security/advisories/GHSA-qggc-44r3-cjgv PatchVendor Advisory
https://www.vicarius.io/vsociety/posts/cve-2026-25063-detection-script-command-injection-vulnerability-in-bash-completio Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2026-25063-mitigation-script-command-injection-vulnerability-in-bash-completi MitigationThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-25063), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.