CVE-2026-73030

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM 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: 0.6%CVSS: 8.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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
8.1HIGHmedium confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 10, 2026

Last Modified

September 24, 2026

Advisory Details (4)

Auto-updated Aug 10, 2026
Patch available. 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.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
unearth0.10.0+ds1-1 ... 0.9.2+ds1-1 (23 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
unearth0.17.5-1, 0.18.1-1, 0.18.2-1, 0.18.3-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
unearth0.17.5-1, 0.18.1-1, 0.18.2-1
  • every version up to 0.18.3-1: fixed in 0.18.3-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 90× 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.

Showing the most recent 100 of 189 total refreshes for this CVE.

  1. 2026-10-05 02:35 UTCEG score recompute
  2. 2026-10-05 02:35 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 12:24 UTCGHSA enrichment
  5. 2026-10-03 22:47 UTCEG score recompute
  6. 2026-10-03 22:47 UTCGHSA enrichment
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 22:34 UTCEG score recompute
  9. 2026-10-02 22:34 UTCGHSA enrichment
  10. 2026-10-02 09:17 UTCEG score recompute
  11. 2026-10-02 09:17 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-10-01 12:08 UTCGHSA enrichment
  14. 2026-09-30 22:24 UTCEG score recompute
  15. 2026-09-30 22:24 UTCGHSA enrichment
  16. 2026-09-29 15:24 UTCEPSS rescore
  17. 2026-09-29 05:21 UTCEG score recompute
  18. 2026-09-29 05:21 UTCGHSA enrichment
  19. 2026-09-28 13:52 UTCEPSS rescore
  20. 2026-09-28 02:22 UTCEG score recompute
  21. 2026-09-28 02:22 UTCGHSA enrichment
  22. 2026-09-27 13:48 UTCEPSS rescore
  23. 2026-09-27 12:32 UTCEG score recompute
  24. 2026-09-27 12:32 UTCGHSA enrichment
  25. 2026-09-26 15:59 UTCEPSS rescore
Show 75 more
  1. 2026-09-25 12:09 UTCGHSA enrichment
  2. 2026-09-24 21:21 UTCEG score recompute
  3. 2026-09-24 21:21 UTCGHSA enrichment
  4. 2026-09-24 02:48 UTCEG score recompute
  5. 2026-09-24 02:48 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 13:38 UTCGHSA enrichment
  8. 2026-09-23 00:19 UTCEG score recompute
  9. 2026-09-23 00:19 UTCGHSA enrichment
  10. 2026-09-22 11:08 UTCGHSA enrichment
  11. 2026-09-21 21:57 UTCEG score recompute
  12. 2026-09-21 21:57 UTCGHSA enrichment
  13. 2026-09-21 21:09 UTCEPSS rescore
  14. 2026-09-21 01:54 UTCEG score recompute
  15. 2026-09-21 01:54 UTCGHSA enrichment
  16. 2026-09-20 20:16 UTCEPSS rescore
  17. 2026-09-20 10:27 UTCGHSA enrichment
  18. 2026-09-19 19:57 UTCEG score recompute
  19. 2026-09-19 19:57 UTCGHSA enrichment
  20. 2026-09-19 06:26 UTCEG score recompute
  21. 2026-09-19 06:25 UTCGHSA enrichment
  22. 2026-09-18 19:28 UTCEPSS rescore
  23. 2026-09-18 17:15 UTCGHSA enrichment
  24. 2026-09-18 04:03 UTCEG score recompute
  25. 2026-09-18 04:03 UTCGHSA enrichment
  26. 2026-09-17 14:53 UTCGHSA enrichment
  27. 2026-09-17 00:40 UTCEG score recompute
  28. 2026-09-17 00:40 UTCGHSA enrichment
  29. 2026-09-16 14:08 UTCEPSS rescore
  30. 2026-09-16 05:15 UTCEPSS rescore
  31. 2026-09-16 02:52 UTCGHSA enrichment
  32. 2026-09-15 13:42 UTCEG score recompute
  33. 2026-09-15 13:42 UTCGHSA enrichment
  34. 2026-09-15 03:12 UTCEPSS rescore
  35. 2026-09-14 22:52 UTCGHSA enrichment
  36. 2026-09-14 08:20 UTCGHSA enrichment
  37. 2026-09-13 19:10 UTCEG score recompute
  38. 2026-09-13 19:10 UTCGHSA enrichment
  39. 2026-09-13 05:40 UTCGHSA enrichment
  40. 2026-09-12 16:30 UTCEG score recompute
  41. 2026-09-12 16:30 UTCGHSA enrichment
  42. 2026-09-12 15:02 UTCEPSS rescore
  43. 2026-09-12 03:19 UTCEG score recompute
  44. 2026-09-12 03:19 UTCGHSA enrichment
  45. 2026-09-11 14:53 UTCEPSS rescore
  46. 2026-09-11 14:08 UTCEG score recompute
  47. 2026-09-11 14:08 UTCGHSA enrichment
  48. 2026-09-10 21:24 UTCEG score recompute
  49. 2026-09-10 21:24 UTCGHSA enrichment
  50. 2026-09-10 09:35 UTCEPSS rescore
  51. 2026-09-10 08:12 UTCEG score recompute
  52. 2026-09-10 08:12 UTCGHSA enrichment
  53. 2026-09-09 19:01 UTCGHSA enrichment
  54. 2026-09-09 05:50 UTCEG score recompute
  55. 2026-09-09 05:50 UTCGHSA enrichment
  56. 2026-09-08 22:01 UTCEPSS rescore
  57. 2026-09-08 07:20 UTCGHSA enrichment
  58. 2026-09-07 17:13 UTCEG score recompute
  59. 2026-09-07 17:13 UTCGHSA enrichment
  60. 2026-09-06 17:47 UTCEG score recompute
  61. 2026-09-06 17:47 UTCGHSA enrichment
  62. 2026-09-06 13:48 UTCEPSS rescore
  63. 2026-09-06 04:36 UTCEG score recompute
  64. 2026-09-06 04:36 UTCGHSA enrichment
  65. 2026-09-05 15:25 UTCGHSA enrichment
  66. 2026-09-05 01:52 UTCEG score recompute
  67. 2026-09-05 01:52 UTCGHSA enrichment
  68. 2026-09-04 08:20 UTCEG score recompute
  69. 2026-09-04 08:20 UTCGHSA enrichment
  70. 2026-09-04 05:07 UTCEPSS rescore
  71. 2026-09-03 16:37 UTCGHSA enrichment
  72. 2026-09-03 02:05 UTCEG score recompute
  73. 2026-09-03 02:05 UTCGHSA enrichment
  74. 2026-09-02 14:12 UTCEPSS rescore
  75. 2026-09-02 02:53 UTCEG score recompute

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 on August 10, 2026, with the most recent update on September 24, 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 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73030?
CVE-2026-73030 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73030?
A fix for CVE-2026-73030 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73030 are linked in the Vendor Advisories panel on this page.

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