HashiCorp Shared Library DSO::mmap_and_copy denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in HashiCorp Shared Library and classified as problematic. This affects the function DSO::mmap_and_copy. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2026-38641. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in HashiCorp Shared Library (the affected version is unknown). Affected by this issue is the function DSO::mmap_and_copy. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

An issue in the DSO::mmap_and_copy function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via loading a crafted shared library.

The advisory is shared for download at gitlab.redox-os.org. This vulnerability is handled as CVE-2026-38641 since 04/06/2026. There are known technical details, but no exploit is available.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-39938). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/06/2026 CVE reserved
06/26/2026 +81 days Advisory disclosed
06/26/2026 +0 days VulDB entry created
06/27/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: gitlab.redox-os.org
Status: Confirmed

CVE: CVE-2026-38641 (🔒)
GCVE (CVE): GCVE-0-2026-38641
GCVE (VulDB): GCVE-100-374420
EUVD: 🔒

Entryinfo

Created: 06/26/2026 23:05
Updated: 06/27/2026 23:01
Changes: 06/26/2026 23:05 (54), 06/27/2026 23:01 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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