Security Digest · Vulnerability record
CVE-2026-7873: Langflow: Code Injection Vulnerability in Code Validation Endpoint
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.
CVSS 9.9 Critical EPSS 1.1% · p65
Should you act?
Critical, preconditions apply
Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.1%, percentile 65: FIRST’s model estimates a 1.1% chance of exploitation activity in the next 30 days, higher than 65% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes
langflow(PyPI) >= 1.0.0, < 1.10.1.rc0, fixed in 1.10.1.rc0. Check your lockfile, including transitive dependencies.
What it is
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.
From the GitHub advisory
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.
Weakness type: CWE-94.
Product: langflow (PyPI) · Assigned by: ibm · Published: 2026-06-30
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| PyPI | langflow | >= 1.0.0, < 1.10.1.rc0 | 1.10.1.rc0 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| IBM | Langflow OSS | 1.0.0 <= 1.10.0 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ibm | 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: low (any account)
- User interaction: none
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-23): 1.07% probability of exploitation activity in the next 30 days; percentile 65.
Timeline
- — CVE record published by ibm
- — GitHub-reviewed advisory GHSA-v798-mcc6-2m3m published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- ibm.com ibm.com
Vulnerability records
- GitHub Advisory GHSA-v798-mcc6-2m3m github.com
- CVE.org record CVE-2026-7873 cve.org
- NVD entry CVE-2026-7873 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- github.com github.com
- github.com github.com