CVE-2026-82955Network attack vectorHinoki check available

Token validation bypass via unverified JWKS retrieval

Published Sep 2, 2026 · Updated Sep 2, 2026

Improper certificate validation in Eclipse aeriOS API Gateway development builds allows man-in-the-middle attackers to subvert token validation. Its Helm templates hard-code KrakenD disable_jwk_security to true, suppressing TLS certificate checks while retrieving bearer-token signing keys. An attacker must intercept the JWKS connection; a substituted key set then causes attacker-signed tokens to pass signature validation.

CVSS severity9.0
Critical
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper certificate validation in Eclipse aeriOS API Gateway development builds allows man-in-the-middle attackers to subvert token validation. Its Helm templates hard-code KrakenD disable_jwk_security to true, suppressing TLS certificate checks while retrieving bearer-token signing keys. An attacker must intercept the JWKS connection; a substituted key set then causes attacker-signed tokens to pass signature validation.

The record

CVE
CVE-2026-82955
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
The Eclipse Foundation
Product
Eclipse aeriOS
Classifications
CWE-347, CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=371ea2101e42aa6503161ce08bbe986e319a9c2f <e680c69c34b82db4944517198330cc447a1e8f98

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse aeriOSversion=371ea2101e42aa6503161ce08bbe986e319a9c2f <e680c69c34b82db4944517198330cc447a1e8f98

Published CVSS scores

9.0Eclipse FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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