5.3

CVE-2026-100348: getkin kin-openapi NULL Pointer Dereference

CVSS: 5.3v3.1MediumDeferred
AliasesGHSA-mh7x-f8wq-4jhxDEBIAN-CVE-2026-100348CGA-22xj-4qf3-3r39
Published 15-10-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-100348 is a medium (CVSS 5.3) NULL Pointer Dereference vulnerability in getkin kin-openapi. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.6% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.37%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12164-1

Timeline

  1. 15-10-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.145.0, openapi3.Loader can dereference a nil SchemaRef.Value while resolving a self-referential additionalProperties JSON Reference such as a schema that points to its own additionalProperties member. Loading an attacker-controlled OpenAPI document through LoadFromData, LoadFromFile, or LoadFromURI reaches resolveComponent before document validation and can panic the loading process. Resolved additionalProperties schemas and ordinary recursive schemas do not take the vulnerable nil-value path. This issue is fixed in version 0.145.0.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

16-10-202619-10-2026
EPSS score
0.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard200 products
  • commercial-grafana-11.6All versions (No fix recorded)
  • commercial-grafana-12.1All versions (No fix recorded)
  • commercial-grafana-12.2All versions (No fix recorded)
  • commercial-grafana-12.3All versions (No fix recorded)
  • commercial-grafana-13.1All versions (No fix recorded)

1 vendor · 200 products · Showing 200 of 473. Use Open JSON for the complete list.

References

9 links