8.8

CVE-2026-19298: ibm langflow oss Code Injection

CVSS: 8.8v3.1HighAnalyzed
Published 04-09-2026Last modified 10-09-2026
Open JSON

Vulnerability summary

CVE-2026-19298 is a high (CVSS 8.8) Code Injection vulnerability in ibm langflow oss. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.50%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-09-2026
    PublishedVulnerability first disclosed.
  2. 10-09-2026
    Last modifiedVulnerability information updated.

Description

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.50%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

+0.01 pp

From 0.49% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.50%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm1 product
Langflow1 product

2 vendors · 2 products

References

1 links