Vulnerability-Lookup

CVE-2026-17578 (GCVE-0-2026-17578)

Vulnerability from cvelistv5 – Published: 2026-08-05 10:20 – Updated: 2026-08-05 13:07

Title

Kong Event Gateway AES-GCM nonce reuse due to missing key rotation enforcement

Summary

Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled. If a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages. New versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.

Severity

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:U/U:Amber

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-05 13:07 UTC

CWE

CWE-323 - Reusing a Nonce, Key Pair in Encryption

Assigner

Kong

References

1 reference

URL	Tags
https://developer.konghq.com/event-gateway/changelog/	release-notes

Impacted products

1 product

Vendor	Product	Version
Kong	Kong Event Gateway	Affected: 1.0.0 , < 1.1.2 (semver) Affected: 1.2.0 , < 1.2.1 (semver)

Date Public

2026-08-05 17:00

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-17578

Vulnerability from fkie_nvd - Published: 2026-08-05 11:16 - Updated: 2026-08-05 14:17

Severity

2.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:U/U:Amber

Summary

References

	URL	Tags
	02762ae7-200e-4b20-9b2b-a77d5b8fc4cb	https://developer.konghq.com/event-gateway/changelog/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://hub.docker.com/r/kong/kong-event-gateway",
          "defaultStatus": "unaffected",
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  ],
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  "lastModified": "2026-08-05T14:17:04.187",
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          "modifiedPrivilegesRequired": "NOT_DEFINED",
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GHSA-V6XC-R9WM-438J

Vulnerability from github – Published: 2026-08-05 12:31 – Updated: 2026-08-05 12:31

Details

If a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.

New versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.

Severity

2.3 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:U/U:Amber

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-17578"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-323"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T11:16:25Z",
    "severity": "LOW"
  },
  "details": "Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.\n\n\n\nIf a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.\n\n\n\nNew versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.",
  "id": "GHSA-v6xc-r9wm-438j",
  "modified": "2026-08-05T12:31:30Z",
  "published": "2026-08-05T12:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17578"
    },
    {
      "type": "WEB",
      "url": "https://developer.konghq.com/event-gateway/changelog"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:Amber",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-17578 (GCVE-0-2026-17578)

FKIE_CVE-2026-17578

GHSA-V6XC-R9WM-438J

Tags

Sightings

Nomenclature