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01 Record

CVE-2026-112949

Vitest: Code injection via unauthenticated manual mock registration

MediumPUBLISHEDCNA: GitHub_M
CNA base score4.7 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
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02 Description

Vitest: Code injection via unauthenticated manual mock registration

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.33% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 26.7% of scored records. A rank, not a probability.
NVD base score
4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-23.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-20 15:19Z8 DAYS AGO
Last updated
2026-10-23 01:42Z6 DAYS AGO
Reserved
2026-10-19
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 4.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
  • CWE-116Improper Encoding or Escaping of OutputClass
  • CWE-306Missing Authentication for Critical FunctionBase
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.2
Document digest
85c4ab3f519a09d04031416cc074a913472603cbc0052c011ae24505e7e1a117

05 Affected products

VendorProductVersionsPlatforms
vitest-devvitest>= 2.1.0-beta.7, < 4.1.12, >= 5.0.0, < 5.0.3—
@vitestmocker>= 2.1.0-beta.7, < 4.1.12, >= 5.0.0, < 5.0.3—

06 References