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CVE-2026-25121

24
FAUCET Score

CVE-2026-25121 is a path traversal vulnerability in Chainguard apko versions 0.14.8 through 1.1.0, allowing an attacker to create directories or symlinks outside the intended installation root by supplying a malicious APK package. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely without authentication, leading to high integrity impact, though confidentiality and availability are not directly affected. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.14.8, < 1.1.1CPE matchmatch criteria
cpe:2.3:a:chainguard:apko:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 10th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: chainguard.dev/apkoFixed in: 1.1.0

Vendor Advisories (1)

goGHSA-5g94-c2wx-8pxwhigh

apko has a path traversal in apko dirFS which allows filesystem writes outside base

Feb 3, 2026

References

github.com / chainguard-dev/apko/commit/d8b7887a968a527791b3c591ae83928cb49a9f14
Patch
github.com / chainguard-dev/apko/security/advisories/GHSA-5g94-c2wx-8pxw
Third Party Advisory