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Vulnerability Details :

CVE-2026-7141

Summary
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
Published At-27 Apr, 2026 | 16:45
Updated At-27 Apr, 2026 | 17:41
Rejected At-
Credits

vllm KV Block kv_cache_interface.py has_mamba_layers uninitialized resource

A vulnerability was found in vllm up to 0.19.0. The affected element is the function has_mamba_layers of the file vllm/v1/kv_cache_interface.py of the component KV Block Handler. Performing a manipulation results in uninitialized resource. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is described as difficult. The exploit has been made public and could be used. The patch is named 1ad67864c0c20f167929e64c875f5c28e1aad9fd. To fix this issue, it is recommended to deploy a patch.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulDB
Assigner Org ID:1af790b2-7ee1-4545-860a-a788eba489b5
Published At:27 Apr, 2026 | 16:45
Updated At:27 Apr, 2026 | 17:41
Rejected At:
▼CVE Numbering Authority (CNA)
vllm KV Block kv_cache_interface.py has_mamba_layers uninitialized resource

A vulnerability was found in vllm up to 0.19.0. The affected element is the function has_mamba_layers of the file vllm/v1/kv_cache_interface.py of the component KV Block Handler. Performing a manipulation results in uninitialized resource. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is described as difficult. The exploit has been made public and could be used. The patch is named 1ad67864c0c20f167929e64c875f5c28e1aad9fd. To fix this issue, it is recommended to deploy a patch.

Affected Products
Vendor
n/a
Product
vllm
CPEs
  • cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Modules
  • KV Block Handler
Versions
Affected
  • 0.1
  • 0.2
  • 0.3
  • 0.4
  • 0.5
  • 0.6
  • 0.7
  • 0.8
  • 0.9
  • 0.10
  • 0.11
  • 0.12
  • 0.13
  • 0.14
  • 0.15
  • 0.16
  • 0.17
  • 0.18
  • 0.19.0
Problem Types
TypeCWE IDDescription
CWECWE-908Uninitialized Resource
Type: CWE
CWE ID: CWE-908
Description: Uninitialized Resource
Metrics
VersionBase scoreBase severityVector
4.06.3MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.15.6MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3.05.6MEDIUM
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2.05.1N/A
AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
Version: 4.0
Base score: 6.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 5.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Version: 3.0
Base score: 5.6
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Version: 2.0
Base score: 5.1
Base severity: N/A
Vector:
AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Zyz3366 (VulDB User)
Timeline
EventDate
Advisory disclosed2026-04-26 00:00:00
VulDB entry created2026-04-26 02:00:00
VulDB entry last update2026-04-26 21:43:06
Event: Advisory disclosed
Date: 2026-04-26 00:00:00
Event: VulDB entry created
Date: 2026-04-26 02:00:00
Event: VulDB entry last update
Date: 2026-04-26 21:43:06
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/359740
vdb-entry
technical-description
https://vuldb.com/vuln/359740/cti
signature
permissions-required
https://vuldb.com/submit/801297
third-party-advisory
https://github.com/vllm-project/vllm/issues/39146
issue-tracking
https://github.com/vllm-project/vllm/pull/39283
issue-tracking
patch
https://github.com/vllm-project/vllm/issues/39146#issue-4215090365
exploit
issue-tracking
https://github.com/AjAnubolu/vllm/commit/1ad67864c0c20f167929e64c875f5c28e1aad9fd
patch
Hyperlink: https://vuldb.com/vuln/359740
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/359740/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/submit/801297
Resource:
third-party-advisory
Hyperlink: https://github.com/vllm-project/vllm/issues/39146
Resource:
issue-tracking
Hyperlink: https://github.com/vllm-project/vllm/pull/39283
Resource:
issue-tracking
patch
Hyperlink: https://github.com/vllm-project/vllm/issues/39146#issue-4215090365
Resource:
exploit
issue-tracking
Hyperlink: https://github.com/AjAnubolu/vllm/commit/1ad67864c0c20f167929e64c875f5c28e1aad9fd
Resource:
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@vuldb.com
Published At:27 Apr, 2026 | 17:16
Updated At:01 May, 2026 | 20:30

A vulnerability was found in vllm up to 0.19.0. The affected element is the function has_mamba_layers of the file vllm/v1/kv_cache_interface.py of the component KV Block Handler. Performing a manipulation results in uninitialized resource. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is described as difficult. The exploit has been made public and could be used. The patch is named 1ad67864c0c20f167929e64c875f5c28e1aad9fd. To fix this issue, it is recommended to deploy a patch.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.02.9LOW
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.15.6MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Secondary2.05.1MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P
Type: Secondary
Version: 4.0
Base score: 2.9
Base severity: LOW
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 5.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Type: Secondary
Version: 2.0
Base score: 5.1
Base severity: MEDIUM
Vector:
AV:N/AC:H/Au:N/C:P/I:P/A:P
CPE Matches
vllm
vllm
>>vllm>>Versions up to 0.19.0(inclusive)
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-908Primarycna@vuldb.com
CWE ID: CWE-908
Type: Primary
Source: cna@vuldb.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/AjAnubolu/vllm/commit/1ad67864c0c20f167929e64c875f5c28e1aad9fdcna@vuldb.com
Patch
https://github.com/vllm-project/vllm/issues/39146cna@vuldb.com
Issue Tracking
https://github.com/vllm-project/vllm/issues/39146#issue-4215090365cna@vuldb.com
Issue Tracking
https://github.com/vllm-project/vllm/pull/39283cna@vuldb.com
Issue Tracking
Patch
https://vuldb.com/submit/801297cna@vuldb.com
Third Party Advisory
VDB Entry
https://vuldb.com/vuln/359740cna@vuldb.com
Third Party Advisory
VDB Entry
https://vuldb.com/vuln/359740/cticna@vuldb.com
Permissions Required
Hyperlink: https://github.com/AjAnubolu/vllm/commit/1ad67864c0c20f167929e64c875f5c28e1aad9fd
Source: cna@vuldb.com
Resource:
Patch
Hyperlink: https://github.com/vllm-project/vllm/issues/39146
Source: cna@vuldb.com
Resource:
Issue Tracking
Hyperlink: https://github.com/vllm-project/vllm/issues/39146#issue-4215090365
Source: cna@vuldb.com
Resource:
Issue Tracking
Hyperlink: https://github.com/vllm-project/vllm/pull/39283
Source: cna@vuldb.com
Resource:
Issue Tracking
Patch
Hyperlink: https://vuldb.com/submit/801297
Source: cna@vuldb.com
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://vuldb.com/vuln/359740
Source: cna@vuldb.com
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://vuldb.com/vuln/359740/cti
Source: cna@vuldb.com
Resource:
Permissions Required

Change History

0
Information is not available yet

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