What is CVE-2026-0770?
Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the exec_globals parameter provided to the validate endpoint. The issue results from the inclusion of a resource from an untrusted control sphere. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-27325.
The record classifies CVE-2026-0770 under weakness class CWE-829. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 270 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 9.8 — CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 63.0% probability of exploitation in the next 30 days, higher than 99.1% of all scored CVEs
- CISA KEV
- Listed since 2026-07-21, federal remediation deadline 2026-07-24
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2026-01-23, last modified 2026-07-22
Is CVE-2026-0770 being exploited?
CISA added CVE-2026-0770 to the Known Exploited Vulnerabilities catalog on 2026-07-21, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-07-24 under BOD 22-01. Weaponised exploit code for CVE-2026-0770 is publicly available. 7 public proof-of-concept repositories are tracked for this identifier. A ProjectDiscovery Nuclei detection template exists (http/cves/2026/CVE-2026-0770.yaml). It currently carries a trending score of 50 in the Threadlinqs vulnerability feed.
- affix/CVE-2026-0770-PoC (github)
- 0xgh057r3c0n/CVE-2026-0770 (github)
- 0xBlackash/CVE-2026-0770 (github)
- Yetazyyy/CVE-2026-0770 (github)
- Ez4rd1x1/CVE-2026-0770 (github)
- diamorphine666/CVE-2026-0770 (github)
- razureink/cve-2026-0770-langflow_rce_reproduction (github)
Affected products and versions
- Langflow: Langflow
Affected software packages:
pip:langflow
How to fix CVE-2026-0770
Because CVE-2026-0770 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-07-24. No vendor patch reference has been recorded for CVE-2026-0770 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-0770
1 tracked threat in the Threadlinqs corpus references CVE-2026-0770, either in the campaign’s CVE list or as an indicator on the campaign record.
- CISA Orders Federal Agencies to Patch Actively Exploited Langflow RCE Flaw (CVE-2026-0770) — CRITICAL · 2026-07-22
Sources
Enriched from CVE.org, FIRST EPSS, CISA KEV, GitHub Security Advisories, public proof-of-concept repositories, ProjectDiscovery Nuclei. Last verified by Threadlinqs on .