TI-2025-00411 Aliases CVE-2025-0495 GHSA-m4gq-fm9h-8q75

Secrets leakage to telemetry endpoint via cache backend configuration via buildx

LOW 19CWE-532Published 2025-03-17 · Updated 2025-03-18

Key facts

Attack vector: Local
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-532.

Summary

Buildx is a Docker CLI plugin that extends build capabilities using BuildKit. Cache backends support credentials by setting secrets directly as attribute values in cache-to/cache-from configuration. When supplied as user input, these secure values may be inadvertently captured in OpenTelemetry traces as part of the arguments and flags for the traced CLI command. OpenTelemetry traces are also saved in BuildKit daemon's history records. This vulnerability does not impact secrets passed to the Github cache backend via environment variables or registry authentication.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00196 9th percentileScored 2026-11-07

Fix Fixed github.com/docker/buildx (Go): 0.21.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Docker	buildx	up to 0.21.2	—	No fix listed	CNA
—	github.com/docker/buildx (Go)	before 0.21.3	0.21.3	Patch available	GHSA-m4gq-fm9h-8q75

buildx VendorDocker Affected up to 0.21.2 Fixed in — No fix listed CNA
github.com/docker/buildx (Go) Vendor— Affected before 0.21.3 Fixed in 0.21.3 Patch available GHSA-m4gq-fm9h-8q75

Remediation

Fix · GHSA-m4gq-fm9h-8q75 github.com/docker/buildx (Go) Fixed in 0.21.3 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-0495
2026-10-03 Alias added: GHSA-m4gq-fm9h-8q75

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2025-0495

Other 3

TI-2019-11833 Docker Desktop Community Edition before 2.1.0.1 allows local users to gain privileges by… KEVCVSS 3.1HIGH 7.8
TI-2019-04061 runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows… CVSS 3.1HIGH 8.6
TI-2025-08316 Docker Desktop allows unauthenticated access to Docker Engine API from containers CVSS 4.0CRITICAL 9.3
TI-2025-02823 Elevation of Privilege in Docker Desktop for Windows during Upgrade due to Insecure Directory Deletion CVSS 4.0HIGH 7.3
TI-2026-14229 Tar extraction in moby/go-archive can write outside the destination directory via link following CVSS 4.0HIGH 7.1
TI-2023-21271 Docker Machine through 0.16.2 allows an attacker, who has control of a worker node, to… CVSS 3.1MEDIUM 6.5

See all 132 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences