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01 Record

CVE-2026-53633

Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

CriticalPUBLISHEDCNA: GitHub_M
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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02 Description

Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total 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
0.89% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 59.1% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-24.
Red Hat severity
Important. 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
2026-07-14 19:35Z3 MO AGO
Last updated
2026-07-29 18:26Z3 MO AGO
Reserved
2026-06-09
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-749Exposed Dangerous Method or FunctionBase
  • CWE-862Missing AuthorizationClass
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
Data version
5.2
Document digest
4e3dc19e171a729c97557a30964ecf98e0a8798a39f0f01bda61957d63376c3f

05 Affected products

VendorProductVersionsPlatforms
vitest-devvitest>= 3.0.0, < 3.2.5, >= 4.0.0, < 4.1.8, >= 5.0.0-beta.0, < 5.0.0-beta.4—

06 References