CVE-2026-90814: Server-Side Request Forgery in cosmicstack-labs mercury-agent
CVE-2026-90814 is a server-side request forgery (SSRF) vulnerability in the cosmicstack-labs mercury-agent up to version 1.1.13. The flaw exists in the githubRequest function within the GitHub API Handler component, allowing manipulation of the path argument to trigger SSRF. Remote exploitation is possible, and a public exploit has been published. The vendor has been informed but has not yet responded or issued a fix. The vulnerability has a medium severity rating with a CVSS 4.0 score of 5.3.
AI Analysis
Technical Summary
This vulnerability affects the cosmicstack-labs mercury-agent versions 1.1.0 through 1.1.13. The issue lies in the githubRequest function of src/utils/github.ts, where improper handling of the path argument enables server-side request forgery. An attacker can remotely exploit this flaw to make unauthorized requests from the server. Although the project was notified early, no official patch or remediation has been released. A public exploit exists, increasing the risk of exploitation.
Potential Impact
Successful exploitation allows an attacker to induce the server to make arbitrary HTTP requests, potentially accessing internal resources or services not otherwise reachable. This can lead to information disclosure or further attacks within the server's network context. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3, indicating a moderate risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official channels for updates. In the meantime, restricting network access from the mercury-agent server to only trusted endpoints and implementing input validation or filtering on the path argument may reduce risk.
CVE-2026-90814: Server-Side Request Forgery in cosmicstack-labs mercury-agent
Description
CVE-2026-90814 is a server-side request forgery (SSRF) vulnerability in the cosmicstack-labs mercury-agent up to version 1.1.13. The flaw exists in the githubRequest function within the GitHub API Handler component, allowing manipulation of the path argument to trigger SSRF. Remote exploitation is possible, and a public exploit has been published. The vendor has been informed but has not yet responded or issued a fix. The vulnerability has a medium severity rating with a CVSS 4.0 score of 5.3.
CVSS v4.0
Score 5.3medium
Affected software
cosmicstack-labs
mercury-agent
pkg:github/cosmicstack-labs/mercury-agentcpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the cosmicstack-labs mercury-agent versions 1.1.0 through 1.1.13. The issue lies in the githubRequest function of src/utils/github.ts, where improper handling of the path argument enables server-side request forgery. An attacker can remotely exploit this flaw to make unauthorized requests from the server. Although the project was notified early, no official patch or remediation has been released. A public exploit exists, increasing the risk of exploitation.
Potential Impact
Successful exploitation allows an attacker to induce the server to make arbitrary HTTP requests, potentially accessing internal resources or services not otherwise reachable. This can lead to information disclosure or further attacks within the server's network context. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3, indicating a moderate risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official channels for updates. In the meantime, restricting network access from the mercury-agent server to only trusted endpoints and implementing input validation or filtering on the path argument may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-13T16:29:55.084Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa8711455bf5e2cf5b3ea8f
Added to database: 09/14/2026, 22:11:32 UTC
Last enriched: 09/14/2026, 22:13:04 UTC
Last updated: 09/15/2026, 05:21:10 UTC
Views: 6
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