Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
6 results
Aug 4, 2026IBM Langflow Code Injection VulnerabilityCVE-2026-9198 · Other software · IBM · reported by psirt@us.ibm.comExploitedCritical 9.8
Langflow contains a code injection vulnerability that allows unauthenticated attackers to achieve full remote code execution on default Langflow deployments.
- Product
- Langflow
- On CISA’s list since
- Aug 4, 2026 (federal fix deadline Aug 7, 2026)
- What to do
- Attackers are using this now. Install IBM’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogibm.comcisa.gov
Jul 21, 2026Langflow Inclusion of Functionality from Untrusted Control Sphere VulnerabilityCVE-2026-0770 · Other software · Langflow · reported by zdi-disclosures@trendmicro.comExploitedCritical 9.8
Langflow contains an inclusion of functionality from untrusted control sphere vulnerability that allows remote attackers to execute arbitrary code on affected installations.
- Product
- Langflow
- On CISA’s list since
- Jul 21, 2026 (federal fix deadline Jul 24, 2026)
- What to do
- Attackers are using this now. Install Langflow’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogzerodayinitiative.comcisa.gov
Jul 7, 2026Langflow Authorization Bypass Through User-Controlled Key VulnerabilityCVE-2026-55255 · Other software · Langflow · reported by GitHubExploitedHigh 8.4
Langflow contains an authorization bypass through user-controlled key vulnerability which allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request.
- Product
- Langflow
- On CISA’s list since
- Jul 7, 2026 (federal fix deadline Jul 10, 2026)
- What to do
- Attackers are using this now. Install Langflow’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comgithub.com
May 21, 2026Langflow Origin Validation Error VulnerabilityCVE-2025-34291 · Other software · Langflow · reported by VulnCheckExploitedCritical 9.4
Langflow contains an origin validation error vulnerability in which an overly permissive CORS configuration combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. This could allow the attacker to execute arbitrary code and achieve full system compromise via obtained tokens that permit access to authenticated endpoints.
- Product
- Langflow
- On CISA’s list since
- May 21, 2026 (federal fix deadline Jun 4, 2026)
- What to do
- Attackers are using this now. Install Langflow’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comobsidiansecurity.com
Mar 25, 2026Langflow Code Injection VulnerabilityCVE-2026-33017 · Other software · Langflow · reported by GitHubExploitedCritical 9.3
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.
- Product
- Langflow
- On CISA’s list since
- Mar 25, 2026 (federal fix deadline Apr 8, 2026)
- What to do
- Attackers are using this now. Install Langflow’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comgithub.com
May 5, 2025Langflow Missing Authentication VulnerabilityCVE-2025-3248 · Other software · Langflow · reported by VulnCheckExploitedRansomwareCritical 9.8
Langflow contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows a remote, unauthenticated attacker to execute arbitrary code via crafted HTTP requests.
- Product
- Langflow
- On CISA’s list since
- May 5, 2025 (federal fix deadline May 26, 2025)
- What to do
- Attackers are using this now. Install Langflow’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comgithub.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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