AI Threat Alert

CVE-2026-19297

CRITICAL
Published August 13, 2026

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication...

Full CISO analysis pending enrichment.

How severe is it?

CVSS 3.1
9.1 / 10
EPSS
N/A
Exploitation Status
No known exploitation
Sophistication
N/A

What is the attack surface?

AV AC PR UI S C I A
AV Network
AC Low
PR None
UI None
S Unchanged
C High
I High
A None

What should I do?

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-19297?

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts.

Is CVE-2026-19297 actively exploited?

No confirmed active exploitation of CVE-2026-19297 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-19297?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-19297?

CVE-2026-19297 has a CVSS v3.1 base score of 9.1 (CRITICAL).

What are the technical details?

Original Advisory

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts.

Weaknesses (CWE)

CWE-307 Improper Restriction of Excessive Authentication Attempts Primary

CWE-307 — Improper Restriction of Excessive Authentication Attempts: The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.

  • [Architecture and Design] Common protection mechanisms include: Disconnecting the user after a small number of failed attempts Implementing a timeout Locking out a targeted account Requiring a computational task on the user's part.
  • [Architecture and Design] Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482]. Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]

Source: MITRE CWE corpus.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Timeline

Published
August 13, 2026
Last Modified
August 13, 2026
First Seen
August 13, 2026
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