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8 vulnerabilities by chainguard

CVE-2026-25145 (GCVE-0-2026-25145)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:32 – Updated: 2026-02-05 14:32
VLAI?
Title
melange has a path traversal in license-path which allows reading files outside workspace
Summary
melange allows users to build apk packages using declarative pipelines. From version 0.14.0 to before 0.40.3, an attacker who can influence a melange configuration file (e.g., through pull request-driven CI or build-as-a-service scenarios) could read arbitrary files from the host system. The LicensingInfos function in pkg/config/config.go reads license files specified in copyright[].license-path without validating that paths remain within the workspace directory, allowing path traversal via ../ sequences. The contents of the traversed file are embedded into the generated SBOM as license text, enabling exfiltration of sensitive data through build artifacts. This issue has been patched in version 0.40.3.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev melange Affected: >= 0.14.0, < 0.40.3
Create a notification for this product.
Show details on NVD website
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CVE-2026-25143 (GCVE-0-2026-25143)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:32 – Updated: 2026-02-05 14:33
VLAI?
Title
melange affected by potential host command execution via license-check YAML mode patch pipeline
Summary
melange allows users to build apk packages using declarative pipelines. From version 0.10.0 to before 0.40.3, an attacker who can influence inputs to the patch pipeline could execute arbitrary shell commands on the build host. The patch pipeline in pkg/build/pipelines/patch.yaml embeds input-derived values (series paths, patch filenames, and numeric parameters) into shell scripts without proper quoting or validation, allowing shell metacharacters to break out of their intended context. The vulnerability affects the built-in patch pipeline which can be invoked through melange build and melange license-check operations. An attacker who can control patch-related inputs (e.g., through pull request-driven CI, build-as-a-service, or by influencing melange configurations) can inject shell metacharacters such as backticks, command substitutions $(…), semicolons, pipes, or redirections to execute arbitrary commands with the privileges of the melange build process. This issue has been patched in version 0.40.3.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev melange Affected: >= 0.10.0, < 0.40.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-24844 (GCVE-0-2026-24844)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:31 – Updated: 2026-02-05 14:33
VLAI?
Title
melange pipeline working-directory could allow command injection
Summary
melange allows users to build apk packages using declarative pipelines. From version 0.3.0 to before 0.40.3, an attacker who can provide build input values, but not modify pipeline definitions, could execute arbitrary shell commands if the pipeline uses ${{vars.*}} or ${{inputs.*}} substitutions in working-directory. The field is embedded into shell scripts without proper quote escaping. This issue has been patched in version 0.40.3.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev melange Affected: >= 0.3.0, < 0.40.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-24843 (GCVE-0-2026-24843)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:31 – Updated: 2026-02-05 14:33
VLAI?
Title
melange QEMU runner could write files outside workspace directory
Summary
melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.
Severity ?
8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev melange Affected: >= 0.11.3, < 0.40.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-25140 (GCVE-0-2026-25140)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:02 – Updated: 2026-02-04 19:17
VLAI?
Title
apko affected by potential unbounded resource consumption in expandapk.ExpandApk on attacker-controlled .apk streams
Summary
apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.1, an attacker who controls or compromises an APK repository used by apko could cause resource exhaustion on the build host. The ExpandApk function in pkg/apk/expandapk/expandapk.go expands .apk streams without enforcing decompression limits, allowing a malicious repository to serve a small, highly-compressed .apk that inflates into a large tar stream, consuming excessive disk space and CPU time, causing build failures or denial of service. This issue has been patched in version 1.1.1.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev apko Affected: >= 0.14.8, < 1.1.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-25121 (GCVE-0-2026-25121)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:02 – Updated: 2026-02-04 19:18
VLAI?
Title
apko is vulnerable to path traversal in apko dirFS which allows filesystem writes outside base
Summary
apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.1, a path traversal vulnerability was discovered in apko's dirFS filesystem abstraction. An attacker who can supply a malicious APK package (e.g., via a compromised or typosquatted repository) could create directories or symlinks outside the intended installation root. The MkdirAll, Mkdir, and Symlink methods in pkg/apk/fs/rwosfs.go use filepath.Join() without validating that the resulting path stays within the base directory. This issue has been patched in version 1.1.1.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-23 - Relative Path Traversal
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev apko Affected: >= 0.14.8, < 1.1.1
Create a notification for this product.
Show details on NVD website
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CVE-2026-25122 (GCVE-0-2026-25122)

Vulnerability from cvelistv5 – Published: 2026-02-04 19:02 – Updated: 2026-02-04 19:19
VLAI?
Title
apko is vulnerable to unbounded resource consumption in expandapk.Split on attacker-controlled .apk streams
Summary
apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.0, expandapk.Split drains the first gzip stream of an APK archive via io.Copy(io.Discard, gzi) without explicit bounds. With an attacker-controlled input stream, this can force large gzip inflation work and lead to resource exhaustion (availability impact). The Split function reads the first tar header, then drains the remainder of the gzip stream by reading from the gzip reader directly without any maximum uncompressed byte limit or inflate-ratio cap. A caller that parses attacker-controlled APK streams may be forced to spend excessive CPU time inflating gzip data, leading to timeouts or process slowdown. This issue has been patched in version 1.1.0.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev apko Affected: >= 0.14.8, < 1.1.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-24845 (GCVE-0-2026-24845)

Vulnerability from cvelistv5 – Published: 2026-01-29 21:02 – Updated: 2026-01-29 21:40
VLAI?
Title
malcontent's OCI image scanning could expose registry credentials
Summary
malcontent discovers supply-chain compromises through. context, differential analysis, and YARA. Starting in version 0.10.0 and prior to version 1.20.3, malcontent could be made to expose Docker registry credentials if it scanned a specially crafted OCI image reference. malcontent uses google/go-containerregistry for OCI image pulls, which by default uses the Docker credential keychain. A malicious registry could return a `WWW-Authenticate` header redirecting token authentication to an attacker-controlled endpoint, causing credentials to be sent to that endpoint. Version 1.20.3 fixes the issue by defaulting to anonymous auth for OCI pulls.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-522 - Insufficiently Protected Credentials
Assigner
References
Impacted products
Vendor Product Version
chainguard-dev malcontent Affected: >= 0.10.0, < 1.20.3
Create a notification for this product.
Show details on NVD website
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