Golang github getkin kin openapi: Prior to 0.148.0, the OpenAPI 3.1 validation path passes YAML NaN and infinity
Affects golang-github-getkin-kin-openapiSource GCVE Database
Not known to be exploited · CVSS 7.5 High · fixed in 0.148.0 : patch golang-github-getkin-kin-openapi soon.
Data as of 28 Oct 2026, 22:30 UTC
- Patch
- Available – fixed in 0.148.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10golang-github-getkin-kin-openapipkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgolang-github-getkin-kin-openapipkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-github-getkin-kin-openapipkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgolang-github-getkin-kin-openapipkg:deb/ubuntu/golang-github-getkin-kin-openapi?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
kin-openapi is a Go project for handling OpenAPI files. Prior to 0.148.0, the OpenAPI 3.1 validation path passes YAML NaN and infinity numeric values to santhosh-tekuri/jsonschema v6.0.2 without applying kin-openapi's existing finite-number guards. A remote unauthenticated client can send an application/yaml or application/x-yaml request body containing .nan, .inf, or -.inf to an operation with a numeric constraint, causing the dependency to create and dereference a nil big.Rat during ValidateRequest. Standard net/http servers recover the panic per connection, while other hosts or application goroutines may terminate the process. This issue is fixed in version 0.148.0.
References
- ubuntu.com/security/CVE-2026-100352 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-100352 (opens in a new tab)
- github.com/getkin/kin-openapi/security/advisories/GHSA-rj39-cv6w-8wv7 (opens in a new tab)
- github.com/getkin/kin-openapi/commit/4487f198ab8be0c37d6ca72c54f5dca4dc25270e (opens in a new tab)
- github.com/getkin/kin-openapi/releases/tag/v0.148.0 (opens in a new tab)