CVE-2026-85086Network attack vectorHinoki check available

TLS server impersonation via disabled certificate verification

Published Oct 2, 2026 · Updated Oct 2, 2026

Certificate validation bypass in Apache Thrift Perl bindings before 0.25.0 allows man-in-the-middle attackers to impersonate TLS servers. Thrift::SSLSocket sets SSL_verify_mode to SSL_VERIFY_NONE when the client has no CA file, accepting an unauthenticated server certificate. Exploitation requires a Perl client using this TLS socket without an explicitly configured CA file and an attacker able to intercept its connection.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Certificate validation bypass in Apache Thrift Perl bindings before 0.25.0 allows man-in-the-middle attackers to impersonate TLS servers. Thrift::SSLSocket sets SSL_verify_mode to SSL_VERIFY_NONE when the client has no CA file, accepting an unauthenticated server certificate. Exploitation requires a Perl client using this TLS socket without an explicitly configured CA file and an attacker able to intercept its connection.

The record

CVE
CVE-2026-85086
Published
Oct 2, 2026
Updated
Oct 2, 2026
Vendor
The Apache Software Foundation
Product
Apache Thrift
Classifications
CWE-1188, CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 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=0 <0.25.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Thriftversion=0 <0.25.0

Published CVSS scores

6.9Apache Software Foundation CNACVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1188Initialization of a Resource with an Insecure Default
CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

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Technologies

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