MediumVulnerability

CVE-2026-104316: IBM Langflow OSS cancellation of other users' background workflow jobs

Source: NVD(opens in a new tab)
Identifier: CVE-2026-104316
Published: October 29, 2026
Record updated: October 29, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.

Summary

IBM Langflow OSS versions 1.0.0 through 1.12.3 contain a flaw tracked as CVE-2026-104316. An authenticated attacker can cancel any victim's running background workflow job with a single HTTP request, because no flow-level permission check is performed. The result is loss of in-progress compute work.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 6.5(medium)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector: network
Attack complexity: low
Privileges required: low
User interaction: none
EPSS: Not scored. FIRST had not published an EPSS score for this CVE when it was last checked on October 29, 2026.
Disclosure date: October 29, 2026

Weaknesses and techniques

Weakness (CWE): CWE-285

Classification

Attack type: Denial of service
Attack sophistication: Trivial
AI component targeted: Framework
Impact: Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-104316

First tracked: October 29, 2026 at 02:08 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 85% (self-assessed)

Summary

Mitigation

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