Review reviewCritical

CVE-2026-8635

IBM Langflow OSS, langflow, macos

IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated users to escalate privileges to superuser by directly manipulating the database, execute arbitrary system commands, and achieve full system compromise with Langflow service permissions.

CVSS
9.9
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.07.18
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 9.9

Vulnerability overview

IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated users to escalate privileges to superuser by directly manipulating the database, execute arbitrary system commands, and achieve full system compromise with Langflow service permissions.

Affected product and versions

Product
IBM Langflow OSS, langflow, macos
Affected versions
>= 1.0.0 <= 1.10.0, >= 1.0.0 < 1.10.1
Fixed versions
1.10.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that IBM Langflow OSS, langflow, macos and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
CWE-94
CVE-2026-8635 — IBM Langflow OSS, langflow, macos | SECUFOCUS NOW