CVE-2026-50163: oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but ret

highCVSS 7.1CVE-2026-50163

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link("victim.secret", "<extract_base>/payload.tar.gz/evil_cwd_link") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link and Linkname="victim.secret" with io.deis.oras.content.unpack: "true", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.1
Published: 2026-07-17
Last updated: 2026-07-23
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-50163

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-501630.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-50163	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

highGHSA-fxhp-mv3v-67qp: `oras-go` tar extraction: Hardlink entry with relative Linkname escapes extract dir via p…ghsa

Recent advisories for oras-go is a

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-50162: oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in cont…nvd · 2026-07-17
highCVE-2026-50151: oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository…nvd · 2026-07-17
unknownCVE-2026-48978: oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the re…nvd · 2026-07-17
highGHSA-fxhp-mv3v-67qp: `oras-go` tar extraction: Hardlink entry with relative Linkname escapes extract dir via p…ghsa · 2026-07-01