F5 NGINX Gateway Fabric up to 2.6.3 Configuration array index

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k3.78

Summaryinfo

A vulnerability was found in F5 NGINX Gateway Fabric up to 2.6.3 and classified as problematic. Impacted is an unknown function of the component Configuration Handler. Executing a manipulation can lead to array index. The identification of this vulnerability is CVE-2026-32682. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in F5 NGINX Gateway Fabric up to 2.6.3. This vulnerability affects an unknown code of the component Configuration Handler. The manipulation with an unknown input leads to a array index vulnerability. The CWE definition for the vulnerability is CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. As an impact it is known to affect availability. CVE summarizes:

When NGINX Gateway Fabric is configured using GRPCRoutes, an authenticated, remote attacker with permission to create or modify GRPCRoute resources can cause the NGINX Gateway Fabric control plane to terminate by sending undisclosed GRPCRoute configurations containing backendRef filters. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The weakness was shared by F5 as K000161786. The advisory is shared for download at my.f5.com. This vulnerability was named CVE-2026-32682 since 06/17/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/18/2026).

Upgrading to version 2.6.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1995). Once again VulDB remains the best source for vulnerability data.

Affected

  • NGINX NGINX
  • NGINX NGINX Plus

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Array index
CWE: CWE-129 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: NGINX Gateway Fabric 2.6.4

Timelineinfo

06/17/2026 CVE reserved
06/18/2026 +1 days Advisory disclosed
06/18/2026 +0 days VulDB entry created
06/18/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: K000161786
Researcher: F5
Status: Confirmed

CVE: CVE-2026-32682 (🔒)
GCVE (CVE): GCVE-0-2026-32682
GCVE (VulDB): GCVE-100-372124
CERT Bund: WID-SEC-2026-1995 - NGINX und NGINX Plus: Mehrere Schwachstellen

Entryinfo

Created: 06/18/2026 07:25
Updated: 06/18/2026 12:13
Changes: 06/18/2026 07:25 (77), 06/18/2026 12:13 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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