Authenticated command execution via callable parser injection
Published May 3, 2026 · Updated May 3, 2026
Command injection in Langflow OSS 1.8.0 through 1.8.4 allows remote authenticated users to execute commands through crafted callable details. CodeParser.parse_callable_details processes attacker-controlled special elements in the Full Builtins handler without neutralizing their command meaning. Low-privileged network access is required; injected commands run with the Langflow process's permissions and can read, modify, or interrupt its resources.
Summary
What happened
Command injection in Langflow OSS 1.8.0 through 1.8.4 allows remote authenticated users to execute commands through crafted callable details. CodeParser.parse_callable_details processes attacker-controlled special elements in the Full Builtins handler without neutralizing their command meaning. Low-privileged network access is required; injected commands run with the Langflow process's permissions and can read, modify, or interrupt its resources.
The record
- CVE
- CVE-2026-7687
- Published
- May 3, 2026
- Updated
- May 3, 2026
- Vendor
- OpenBMC Project
- Product
- Langflow OSS
- Classifications
- CWE-77, CWE-74, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 3, 2026CVE publishedPublication date reported by the CVE source.
- May 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.8.0
- Affected versionversion=1.8.1
- Affected versionversion=1.8.2
- Affected versionversion=1.8.3
- Affected versionversion=1.8.4
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Yuque command-injection proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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