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Vulnerability · Published Sep 27, 2024 · Assigned by VulDB

CVE-2024-9277Langflow HTTP POST Request utils.py redos

Low 3.5

In plain English

A low-severity regular-expression denial of service in Langflow. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)1.0%top 38.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability classified as problematic was found in Langflow up to 1.0.18. Affected by this vulnerability is an unknown functionality of the file \src\backend\base\langflow\interface\utils.py of the component HTTP POST Request Handler. The manipulation of the argument remaining_text leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIlangflowno fix listedGHSA-355v-2rjx-fpx7
PyPIlangflowno fix listedPYSEC-2026-1521

Affected products (as reported)

VendorProductVersions
n/a Langflow 1.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.7

Weakness: CWE-1333 · Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References