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  4. CVE 2026 7873 langflow code injection vulnerability in code
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Back to active CVEs
Critical · CVSS 9.9CVE-2026-7873GHSA-V798-MCC6-2M3M

Langflow: Code Injection Vulnerability in Code Validation EndpointCVE-2026-7873

Answer in brief

CVE-2026-7873 records a Critical severity (CVSS 9.9) vulnerability in Langflow: Code Injection Vulnerability in Code Validation Endpoint. The current sources do not mark it as known exploited. The current feed maps langflow (pip), langflow (pypi). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 30, 2026Updated Oct 23, 2026Source checked Oct 23, 2026First seen by HOL Jun 30, 2026Material review Oct 23, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.9
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 9.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps langflow (pip), langflow (pypi). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
langflowpip>=1.0.0,<1.10.1.rc01.10.1.rc0
langflowpypi>=1.0.0 <1.10.1.rc01.10.1.rc0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for langflow, langflow.
  2. 2Review the reported fix. Update langflow to 1.10.1.rc0; langflow to 1.10.1.rc0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 30, 2026

    Evidence: source:ghsa:source_dates:source-dates:record

  2. Source modified

    Oct 23, 2026

    Evidence: source:ghsa:source_dates:source-dates:record

  3. First seen by HOL

    Jun 30, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
  • Source referenceibm.com
  • GitHub security advisorygithub.com
Upstream source description

IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated attackers to execute arbitrary OS commands and read sensitive files including credentials, enabling complete system compromise and lateral movement.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Happy DOM: Incomplete fix for CVE-2026-33943: unsanitized import alias leads to host code executionAlso CWE-94
  • Control panel only API response emulation replaces "securityKey" and reaches server RCEAlso CWE-94
  • pypdf: Possible long runtimes for repeated references to the same missing objectSame pip ecosystem
  • pypdf: Possible long runtimes for large xref table header limitsSame pip ecosystem
  • pypdf: Possible long runtimes for repeated malformed cross-reference entries (Follow-up)Same pip ecosystem
  • virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)Same pip ecosystem

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-94
Source
GitHub Security Advisories
Source checked
Oct 23, 2026
References
7 linked sources
Open source record