HashiCorp Vault/Vault Enterprise up to 1.18.1 synchronous access of remote resource without timeout

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in HashiCorp Vault and Vault Enterprise. The affected element is an unknown function. This manipulation causes synchronous access of remote resource without timeout. This vulnerability is handled as CVE-2025-4656. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in HashiCorp Vault and Vault Enterprise. It has been declared as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a synchronous access of remote resource without timeout vulnerability. The CWE definition for the vulnerability is CWE-1088. The code has a synchronous call to a remote resource, but there is no timeout for the call, or the timeout is set to infinite. As an impact it is known to affect availability. The summary by CVE is:

Vault Community and Vault Enterprise rekey and recovery key operations can lead to a denial of service due to uncontrolled cancellation by a Vault operator. This vulnerability (CVE-2025-4656) has been remediated in Vault Community Edition 1.20.0 and Vault Enterprise 1.20.0, 1.19.6, 1.18.11, 1.17.17, and 1.16.22.

It is possible to read the advisory at discuss.hashicorp.com. This vulnerability is known as CVE-2025-4656 since 05/13/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.20.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.1
CNA Vector (HashiCorp): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Synchronous access of remote resource without timeout
CWE: CWE-1088
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Vault/Vault Enterprise 1.20.0

Timelineinfo

05/13/2025 CVE reserved
06/25/2025 +43 days Advisory disclosed
06/25/2025 +0 days VulDB entry created
08/14/2025 +50 days VulDB entry last update

Sourcesinfo

Advisory: discuss.hashicorp.com
Status: Confirmed

CVE: CVE-2025-4656 (🔒)
GCVE (CVE): GCVE-0-2025-4656
GCVE (VulDB): GCVE-100-313891

Entryinfo

Created: 06/25/2025 18:56
Updated: 08/14/2025 06:17
Changes: 06/25/2025 18:56 (62), 08/14/2025 06:17 (1)
Complete: 🔍
Cache ID: 216::103

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