cosmicstack-labs mercury-agent up to 1.1.13 GitHub API src/utils/github.ts githubRequest path server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k1.08

Summaryinfo

A vulnerability was found in cosmicstack-labs mercury-agent up to 1.1.13 and classified as critical. Affected by this issue is the function githubRequest of the file src/utils/github.ts of the component GitHub API Handler. Such manipulation of the argument path leads to server-side request forgery. This vulnerability is documented as CVE-2026-90814. The attack can be executed remotely. Additionally, an exploit exists. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in cosmicstack-labs mercury-agent up to 1.1.13. It has been rated as critical. Affected by this issue is the function githubRequest of the file src/utils/github.ts of the component GitHub API Handler. The manipulation of the argument path with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-90814. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/13/2026 Advisory disclosed
09/13/2026 +0 days VulDB entry created
09/13/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 81
Status: Not defined

CVE: CVE-2026-90814 (🔒)
GCVE (CVE): GCVE-0-2026-90814
GCVE (VulDB): GCVE-100-403316
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/13/2026 18:35
Updated: 09/13/2026 18:38
Changes: 09/13/2026 18:35 (58), 09/13/2026 18:38 (1)
Complete: 🔍
Submitter: Eric-a
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #922880: CosmicStack Labs Mercury Agent (@cosmicstack/mercury-agent) <= 1.1.13 Server-Side Request Forgery (CWE-918) / Token Exfiltration (by Eric-a)

Once again VulDB remains the best source for vulnerability data.

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