CVE-2026-66297
Unescaped deployment environment variables in generated setup commands
Description
Improper Neutralization of Special Elements used in an OS Command (OS Command Injection) vulnerability in livebook-dev livebook allows command injection into generated deployment setup commands. LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.docker_instructions/2 and LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.fly_instructions/4 in lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex interpolate deployment group environment variable values into the generated Docker and Fly.io setup commands without shell escaping. The values originate from the deployment group configuration and reach the sinks through Livebook.Hubs.Dockerfile.online_docker_info/3. Both sinks place the value inside a double-quoted shell word, so a value containing a command substitution such as $(...) or backticks is evaluated by the shell without any need to break out of the quoting, and a literal double quote terminates the quoted word and allows arbitrary further tokens. The generated command is displayed in the Livebook web interface with a copy button, so a user who copies it and runs it without reviewing it first executes the injected commands on their own machine, under their own account. An attacker requires privileges sufficient to set deployment group environment variables, while the resulting code execution occurs on the machine of whoever runs the generated command. The Kubernetes instructions are not affected, because they render the same values into a YAML manifest with escaping rather than into a shell command. This issue affects livebook: from 0.13.0 before 0.18.7 and from 0.19.0 before 0.19.9.
INFO
Published Date :
Aug. 5, 2026, 8:17 p.m.
Last Modified :
Aug. 5, 2026, 8:17 p.m.
Remotely Exploit :
Yes !
Source :
6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Affected Products
The following products are affected by CVE-2026-66297
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 6b3ad84c-e1a6-4bf7-a703-f496b71e49db | ||||
| CVSS 4.0 | MEDIUM | 6b3ad84c-e1a6-4bf7-a703-f496b71e49db |
Solution
- Update Livebook to version 0.18.7 or later.
- Update Livebook to version 0.19.9 or later.
- Review deployment group configurations.
- Verify environment variables before executing commands.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-66297.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-66297 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-66297
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-66297 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-66297 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Aug. 05, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*'], 'repo': 'https://github.com/livebook-dev/livebook', 'vendor': 'livebook-dev', 'modules': ['Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent'], 'product': 'livebook', 'versions': [{'status': 'affected', 'version': '0.13.0', 'lessThan': '0.18.7', 'versionType': 'semver'}, {'status': 'affected', 'version': '0.19.0', 'lessThan': '0.19.9', 'versionType': 'semver'}], 'packageURL': 'pkg:hex/livebook', 'packageName': 'livebook', 'programFiles': ['lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex'], 'collectionURL': 'https://repo.hex.pm', 'defaultStatus': 'unaffected', 'programRoutines': [{'name': "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':docker_instructions/2"}, {'name': "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':fly_instructions/4"}]}, {'cpes': ['cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*'], 'vendor': 'livebook-dev', 'modules': ['Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent'], 'product': 'livebook', 'versions': [{'status': 'affected', 'version': '0.13.0', 'lessThan': '0.18.7', 'versionType': 'other'}, {'status': 'affected', 'version': '0.19.0', 'lessThan': '0.19.9', 'versionType': 'other'}, {'status': 'affected', 'version': '0.13.0-cuda12', 'lessThan': '0.18.7-cuda12', 'versionType': 'other'}, {'status': 'affected', 'version': '0.19.0-cuda12', 'lessThan': '0.19.9-cuda12', 'versionType': 'other'}], 'packageURL': 'pkg:oci/livebook?repository_url=ghcr.io%2Flivebook-dev', 'packageName': 'livebook-dev/livebook', 'programFiles': ['lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex'], 'collectionURL': 'https://ghcr.io', 'defaultStatus': 'unaffected', 'programRoutines': [{'name': "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':docker_instructions/2"}, {'name': "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':fly_instructions/4"}]}, {'cpes': ['cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*'], 'repo': 'https://github.com/livebook-dev/livebook', 'vendor': 'livebook-dev', 'modules': ['Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent'], 'product': 'livebook', 'versions': [{'status': 'affected', 'changes': [{'at': 'b2a8416d149043132fe5a14ed611e0fefc9dc9cd', 'status': 'unaffected'}, {'at': '0c2487326bbb37cb1eb43bb2f76eb93ad9f8fd6b', 'status': 'unaffected'}, {'at': 'f8fe9c62cb8bfc1dd0ccda4ea4a57c5e91563c85', 'status': 'unaffected'}], 'version': '7cf4af5c10ec645f55a10f30e5661c54f6a6b319', 'lessThan': '*', 'versionType': 'git'}], 'packageURL': 'pkg:github/livebook-dev/livebook', 'packageName': 'livebook-dev/livebook', 'programFiles': ['lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex'], 'collectionURL': 'https://github.com', 'defaultStatus': 'unaffected', 'programRoutines': [{'name': "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':docker_instructions/2"}, {'name': "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':fly_instructions/4"}]}] Added Description Improper Neutralization of Special Elements used in an OS Command (OS Command Injection) vulnerability in livebook-dev livebook allows command injection into generated deployment setup commands. LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.docker_instructions/2 and LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.fly_instructions/4 in lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex interpolate deployment group environment variable values into the generated Docker and Fly.io setup commands without shell escaping. The values originate from the deployment group configuration and reach the sinks through Livebook.Hubs.Dockerfile.online_docker_info/3. Both sinks place the value inside a double-quoted shell word, so a value containing a command substitution such as $(...) or backticks is evaluated by the shell without any need to break out of the quoting, and a literal double quote terminates the quoted word and allows arbitrary further tokens. The generated command is displayed in the Livebook web interface with a copy button, so a user who copies it and runs it without reviewing it first executes the injected commands on their own machine, under their own account. An attacker requires privileges sufficient to set deployment group environment variables, while the resulting code execution occurs on the machine of whoever runs the generated command. The Kubernetes instructions are not affected, because they render the same values into a YAML manifest with escaping rather than into a shell command. This issue affects livebook: from 0.13.0 before 0.18.7 and from 0.19.0 before 0.19.9. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:H/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/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 Added CWE CWE-78 Added Reference https://cna.erlef.org/cves/CVE-2026-66297.html Added Reference https://github.com/livebook-dev/livebook/commit/0c2487326bbb37cb1eb43bb2f76eb93ad9f8fd6b Added Reference https://github.com/livebook-dev/livebook/commit/b2a8416d149043132fe5a14ed611e0fefc9dc9cd Added Reference https://github.com/livebook-dev/livebook/commit/f8fe9c62cb8bfc1dd0ccda4ea4a57c5e91563c85 Added Reference https://github.com/livebook-dev/livebook/security/advisories/GHSA-qpjc-w5mm-73mj Added Reference https://osv.dev/vulnerability/EEF-CVE-2026-66297