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01 Record

CVE-2022-24802

Prototype Pollution in deepmerge-ts

HighPUBLISHEDCNA: GitHub_M
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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02 Description

Prototype Pollution in deepmerge-ts

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • 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
1.67% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 76.6% 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
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

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
2022-03-31 23:15Z4 YR AGO
Last updated
2025-04-23 18:42Z1 YR AGO
Reserved
2022-02-10
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-915Improperly Controlled Modification of Dynamically-Determined Object AttributesBase
  • CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant
Data version
5.1
Document digest
eb1786276a6a34331b50430ae9ac2ca391eb0658b26cd5b16be94cafb269aa3f

05 Affected products

VendorProductVersionsPlatforms
RebeccaStevensdeepmerge-ts< 4.0.2—

06 References