CVE-2026-95210Hinoki check available

Certificate-validation bypass via invalid extensions

Published Oct 8, 2026 · Updated Oct 8, 2026

Certificate validation in GnuTLS 3.8.13 allows attackers to bypass rejection of certificates with invalid extensions via crafted certificates. The supplied report describes acceptance of invalid extensions, but retrieved public sources do not identify the affected function or the incorrect validation operation. Reaching the reported behavior requires certificate processing; attacker privileges, network reachability, and consequences beyond certificate acceptance remain undocumented.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Certificate validation in GnuTLS 3.8.13 allows attackers to bypass rejection of certificates with invalid extensions via crafted certificates. The supplied report describes acceptance of invalid extensions, but retrieved public sources do not identify the affected function or the incorrect validation operation. Reaching the reported behavior requires certificate processing; attacker privileges, network reachability, and consequences beyond certificate acceptance remain undocumented.

The record

CVE
CVE-2026-95210
Published
Oct 8, 2026
Updated
Oct 8, 2026
Vendor
GnuTLS Project
Product
GnuTLS
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 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=n/a

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

GnuTLS Project · GnuTLSversion=n/a

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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