8.8

CVE-2026-18729: ibm langflow oss Code Injection

CVSS: 8.8v3.1HighAnalyzed
Published 28-08-2026Last modified 01-09-2026
Open JSON

Vulnerability summary

CVE-2026-18729 is a high (CVSS 8.8) Code Injection vulnerability in ibm langflow oss. EPSS estimates a 1.78% chance of exploitation in the next 30 days, higher than 78% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.78%
0%100%
Low · +0.90 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1metasploit

Timeline

  1. 28-08-2026
    PublishedVulnerability first disclosed.
  2. 01-09-2026
    Last modifiedVulnerability information updated.

Description

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute arbitrary code due to improper control of generation of code.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.78%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

+0.90 pp

From 0.88% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.78%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • MetasploitMetasploitremoteVerified

    Langflow AI Custom Component Authenticated RCE

    exploit/multi/http/langflow_auth_rce_cve_2026_18729

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Ibm1 product
Langflow1 product

2 vendors · 2 products

References

1 links