Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS
CVE-2026-123786 Overview
Agenta before 0.122.5 contains a server-side request forgery vulnerability that allows workspace members with workflow edit rights to redirect workflow invocations by setting arbitrary revision URLs. Attackers can capture the attached secret-resolve Authorization token to read provider secrets from the vault API, or reach internal and cloud metadata addresses.
Critical Impact
Affected Products
- Agenta: see the vendor advisory for the exact affected versions
Discovery Timeline
- 2026-11-06: CVE-2026-123786 published to the National Vulnerability Database by disclosure@vulncheck.com
- 2026-11-06: last updated in the NVD database
Technical Details for CVE-2026-123786
Vulnerability Analysis
CVE-2026-123786 is a Server Side Request Forgery weakness (CWE-918: Server Side Request Forgery) in Agenta. Based on its CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. The server can be made to send requests to internal or arbitrary systems.
With a CVSS base score of 8.4, apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Root Cause
The weakness is classified as CWE-918: Server Side Request Forgery. The server can be made to send requests to internal or arbitrary systems.
Attack Vector
Based on the CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. Attack complexity is low complexity.
No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Detection Methods for CVE-2026-123786
Detection Strategies
- Inventory every instance of Agenta and compare the running version with the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Run an authenticated vulnerability scan once your scanner ships a check for this CVE.
Monitoring Recommendations
- Forward Agenta application, access and audit logs to your SIEM for retrospective hunting.
- Alert on new processes, configuration changes or outbound connections from the affected service.
- Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.
How to Mitigate CVE-2026-123786
Immediate Actions Required
- Apply the fixed version of Agenta named in the vendor advisory.
- Prioritize internet facing and business critical instances first.
- Rescan after the change to confirm the exposure is closed.
Patch Information
Use the fixed version listed in the vendor advisory for Agenta.
Workarounds
- If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.
CWE References
- CWE-918: Server Side Request Forgery More CVEs with this weakness
Technical References
This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.
Frequently asked questions
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