SB2026073073 - NULL pointer dereference in kin-openapi

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Main Vulnerability Database SB2026073073

SB2026073073 - NULL pointer dereference in kin-openapi

Published: July 30, 2026

Security Bulletin ID SB2026073073
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL pointer dereference (CVE-ID: N/A)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to null pointer dereference in openapi3filter request and response decoders when processing OpenAPI 3.1 array schemas that omit items. A remote attacker can send a specially crafted request to cause a denial of service.

Only OpenAPI 3.1 documents are affected. The issue can be triggered through application/x-www-form-urlencoded and multipart/form-data request bodies, as well as array-typed response headers and other parseArray surfaces. User interaction is not required.


Remediation

Install update from vendor's website.

References