CVE-2026-50163

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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", "/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.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
35.1%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 23, 2026

Advisory Details (4)

Auto-updated Jul 17, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

v2.6.2

Patch available: oras-project/oras-go v2.6.2

https://github.com/oras-project/oras-go/releases/tag/v2.6.2
github_commit Patch Available

commit c463c654ab3e (oras-project/oras-go)

Patch available: oras-project/oras-go v2.6.2 (contains commit c463c654ab3e)

https://github.com/oras-project/oras-go/commit/c463c654ab3ef34422c1764cd619806cebf20451
github_pr Patch Available

fix: prevent hardlink path traversal via process CWD (GHSA-fxhp-mv3v-67qp)

Patch available: oras-project/oras-go v2.6.2 (PR #1232 merged 2026-07-03)

https://github.com/oras-project/oras-go/pull/1232
github Patch Available🟡 PoC Available

Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction · Advisory · oras-project/oras-go · GitHub

https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp

Vendor Advisories for CVE-2026-50163(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
gooras.land/oras-go/v2—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
oras.land/oras-go/v2———

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:18 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 03:51 UTCEG score recompute
  9. 2026-07-19 03:51 UTCGHSA enrichment
  10. 2026-07-19 02:29 UTCEPSS rescore
  11. 2026-07-17 06:36 UTCGHSA enrichment
  12. 2026-07-16 17:28 UTCGHSA enrichment
  13. 2026-07-16 03:56 UTCGHSA enrichment
  14. 2026-07-15 14:48 UTCGHSA enrichment
  15. 2026-07-15 01:39 UTCGHSA enrichment
  16. 2026-07-14 12:31 UTCGHSA enrichment
  17. 2026-07-13 23:23 UTCGHSA enrichment
  18. 2026-07-13 10:15 UTCGHSA enrichment
  19. 2026-07-12 21:07 UTCGHSA enrichment
  20. 2026-07-12 07:50 UTCGHSA enrichment
  21. 2026-07-11 18:42 UTCGHSA enrichment
  22. 2026-07-11 05:34 UTCGHSA enrichment
  23. 2026-07-10 16:26 UTCGHSA enrichment
  24. 2026-07-10 03:18 UTCGHSA enrichment
  25. 2026-07-09 14:09 UTCGHSA enrichment
Show 15 more
  1. 2026-07-09 01:00 UTCGHSA enrichment
  2. 2026-07-08 11:52 UTCGHSA enrichment
  3. 2026-07-07 22:43 UTCGHSA enrichment
  4. 2026-07-07 09:34 UTCGHSA enrichment
  5. 2026-07-06 20:24 UTCGHSA enrichment
  6. 2026-07-06 07:14 UTCGHSA enrichment
  7. 2026-07-05 18:06 UTCGHSA enrichment
  8. 2026-07-05 04:57 UTCGHSA enrichment
  9. 2026-07-04 15:47 UTCGHSA enrichment
  10. 2026-07-04 02:38 UTCGHSA enrichment
  11. 2026-07-03 13:26 UTCGHSA enrichment
  12. 2026-07-03 00:18 UTCGHSA enrichment
  13. 2026-07-02 11:10 UTCGHSA enrichment
  14. 2026-07-01 22:02 UTCEG score recompute
  15. 2026-07-01 22:02 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50163?
CVE-2026-50163 is a high vulnerability published on July 1, 2026. 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", "<extractbase>/payload.tar.gz/evilcwdlink") to resolve…
When was CVE-2026-50163 disclosed?
CVE-2026-50163 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50163 actively exploited?
CVE-2026-50163 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50163?
CVE-2026-50163 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-50163?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50163, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-50163

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