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Vulnerability Details :

CVE-2026-28407

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-27 Feb, 2026 | 21:28
Updated At-27 Feb, 2026 | 21:28
Rejected At-
Credits

malcontent's nested archive extraction failure can drop content from scan inputs

malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA. Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which could potentially leave malicious content. A better approach is to preserve these archives so that malcontent can attempt a best-effort scan of the archive bytes. Version 1.21.0 fixes the issue.

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:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:27 Feb, 2026 | 21:28
Updated At:27 Feb, 2026 | 21:28
Rejected At:
▼CVE Numbering Authority (CNA)
malcontent's nested archive extraction failure can drop content from scan inputs

malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA. Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which could potentially leave malicious content. A better approach is to preserve these archives so that malcontent can attempt a best-effort scan of the archive bytes. Version 1.21.0 fixes the issue.

Affected Products
Vendor
chainguard-dev
Product
malcontent
Versions
Affected
  • < 1.21.0
Problem Types
TypeCWE IDDescription
CWECWE-703CWE-703: Improper Check or Handling of Exceptional Conditions
Type: CWE
CWE ID: CWE-703
Description: CWE-703: Improper Check or Handling of Exceptional Conditions
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp
x_refsource_CONFIRM
https://github.com/chainguard-dev/malcontent/pull/1383
x_refsource_MISC
https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9
x_refsource_MISC
Hyperlink: https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/chainguard-dev/malcontent/pull/1383
Resource:
x_refsource_MISC
Hyperlink: https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9
Resource:
x_refsource_MISC
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:27 Feb, 2026 | 22:16
Updated At:27 Feb, 2026 | 22:16

malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA. Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which could potentially leave malicious content. A better approach is to preserve these archives so that malcontent can attempt a best-effort scan of the archive bytes. Version 1.21.0 fixes the issue.

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
Secondary4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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: Secondary
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-703Primarysecurity-advisories@github.com
CWE ID: CWE-703
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9security-advisories@github.com
N/A
https://github.com/chainguard-dev/malcontent/pull/1383security-advisories@github.com
N/A
https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcpsecurity-advisories@github.com
N/A
Hyperlink: https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/chainguard-dev/malcontent/pull/1383
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp
Source: security-advisories@github.com
Resource: N/A

Change History

0
Information is not available yet

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