CVE-2026-109408
vault-java-driver: SslConfig silently disables requested TLS verification
Description
vault-java-driver, a Java client for HashiCorp Vault, silently disables TLS certificate and hostname verification in three states where the caller asked for verification: an SslConfig passed to VaultConfig without calling build(), an SslConfig restored by Java deserialization, and VAULT_SSL_VERIFY set to a truthy value other than "true", such as 1, yes or on. In each case SslConfig.isVerify() returns false and the driver installs a trust-all SSLContext. An attacker on the network path to the Vault server can then read the Vault token and secrets in transit and forge responses. This issue affects io.github.jopenlibs:vault-java-driver 5.2.0 through 6.2.3. It is fixed in 7.0.0.
INFO
Published Date :
Nov. 5, 2026, 8:17 a.m.
Last Modified :
Nov. 5, 2026, 8:17 a.m.
Remotely Exploit :
Yes !
Source :
abd028dc-c042-4c4d-9749-38d0f850af89
Affected Products
The following products are affected by CVE-2026-109408
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | abd028dc-c042-4c4d-9749-38d0f850af89 |
Solution
- Update vault-java-driver to version 7.0.0 or later.
- Ensure TLS verification is properly configured.
- Avoid truthy non-"true" values for VAULT_SSL_VERIFY.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-109408.
| URL | Resource |
|---|---|
| https://github.com/jopenlibs/vault-java-driver/pull/78 | |
| https://repo.maven.apache.org/maven2/io/github/jopenlibs/vault-java-driver/7.0.0/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-109408 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-109408
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-109408 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-109408 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by abd028dc-c042-4c4d-9749-38d0f850af89
Nov. 05, 2026
Action Type Old Value New Value Added Description vault-java-driver, a Java client for HashiCorp Vault, silently disables TLS certificate and hostname verification in three states where the caller asked for verification: an SslConfig passed to VaultConfig without calling build(), an SslConfig restored by Java deserialization, and VAULT_SSL_VERIFY set to a truthy value other than "true", such as 1, yes or on. In each case SslConfig.isVerify() returns false and the driver installs a trust-all SSLContext. An attacker on the network path to the Vault server can then read the Vault token and secrets in transit and forge responses. This issue affects io.github.jopenlibs:vault-java-driver 5.2.0 through 6.2.3. It is fixed in 7.0.0. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-295 Added CWE CWE-297 Added CWE CWE-636 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/109xxx/CVE-2026-109408.json">CVE-2026-109408</a> Added Reference https://github.com/jopenlibs/vault-java-driver/pull/78 Added Reference https://repo.maven.apache.org/maven2/io/github/jopenlibs/vault-java-driver/7.0.0/