CVE-2026-73030

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0

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

unearth through 0.18.2, fixed in commit 6c78164, contains a path traversal vulnerability in the is_within_directory function that fails to normalize paths before validation, allowing ../ sequences to bypass directory containment checks. Attackers can supply malicious tar archives with symlink members or traversal sequences to write files to arbitrary filesystem locations accessible to the process.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 11, 2026

Advisory Details (4)

Auto-updated Aug 10, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape | Advisories | VulnCheck

https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-paths-and-symlink-escape
github_commit

commit 6c78164e7bfa (frostming/unearth)

Fix landed in frostming/unearth commit 6c78164e7bfa — awaiting tagged release

https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba
github_pr

fix: prevent tar-slip via path traversal and symlink escape in _untar_archive

Fix merged in frostming/unearth PR #181 on 2026-08-05 — awaiting tagged release

https://github.com/frostming/unearth/pull/181
generic

Tar-Slip in unearth sdist Extraction · Issue #180 · frostming/unearth · GitHub

https://github.com/frostming/unearth/issues/180

Vendor Advisories for CVE-2026-73030(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 29× in last 7d / 46× 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. 2026-08-21 03:27 UTCEG score recompute
  2. 2026-08-21 03:27 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 14:16 UTCGHSA enrichment
  5. 2026-08-20 00:35 UTCEG score recompute
  6. 2026-08-20 00:35 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 11:24 UTCGHSA enrichment
  9. 2026-08-18 22:14 UTCEG score recompute
  10. 2026-08-18 22:14 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 08:57 UTCGHSA enrichment
  14. 2026-08-17 19:46 UTCEG score recompute
  15. 2026-08-17 19:45 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 06:33 UTCGHSA enrichment
  18. 2026-08-16 17:23 UTCEG score recompute
  19. 2026-08-16 17:23 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 04:13 UTCEG score recompute
  23. 2026-08-16 04:13 UTCGHSA enrichment
  24. 2026-08-16 02:15 UTCEPSS rescore
  25. 2026-08-15 15:03 UTCGHSA enrichment
Show 21 more
  1. 2026-08-15 01:52 UTCEG score recompute
  2. 2026-08-15 01:52 UTCGHSA enrichment
  3. 2026-08-15 01:31 UTCEPSS rescore
  4. 2026-08-14 12:42 UTCGHSA enrichment
  5. 2026-08-13 23:32 UTCEG score recompute
  6. 2026-08-13 23:32 UTCGHSA enrichment
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-13 10:20 UTCGHSA enrichment
  9. 2026-08-12 21:09 UTCEG score recompute
  10. 2026-08-12 21:09 UTCGHSA enrichment
  11. 2026-08-12 13:51 UTCEPSS rescore
  12. 2026-08-12 07:50 UTCGHSA enrichment
  13. 2026-08-11 18:40 UTCEG score recompute
  14. 2026-08-11 18:40 UTCGHSA enrichment
  15. 2026-08-11 17:45 UTCEG score recompute
  16. 2026-08-11 17:45 UTCGHSA enrichment
  17. 2026-08-11 10:42 UTCGHSA enrichment
  18. 2026-08-10 21:32 UTCEG score recompute
  19. 2026-08-10 21:32 UTCGHSA enrichment
  20. 2026-08-10 20:20 UTCEG score recompute
  21. 2026-08-10 20:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73030?
CVE-2026-73030 is a high vulnerability published on August 10, 2026. unearth through 0.18.2, fixed in commit 6c78164, contains a path traversal vulnerability in the iswithindirectory function that fails to normalize paths before validation, allowing ../ sequences to bypass directory containment checks. Attackers can supply malicious tar archives with symlink members…
When was CVE-2026-73030 disclosed?
CVE-2026-73030 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73030 actively exploited?
CVE-2026-73030 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.2% of all scored CVEs.
What is the CVSS score of CVE-2026-73030?
CVE-2026-73030 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-73030?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73030, 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

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