CVE-2026-73566

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

A fix is available — apply it.

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path, entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This issue is fixed in version 7.5.21.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit.
github_commit

commit 631ae59121bf (isaacs/node-tar)

Fix landed in isaacs/node-tar commit 631ae59121bf — awaiting tagged release

https://github.com/isaacs/node-tar/commit/631ae59121bf8fc8a22bbae35f074cb9b789cd4a
github Patch Available🟡 PoC Available

Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selection · Advisory · isaacs/node-tar · GitHub

https://github.com/isaacs/node-tar/security/advisories/GHSA-r292-9mhp-454m

Vendor Advisories for CVE-2026-73566(9)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatansible-automation-platform/bootc-automation-portal-rhel9:17889435312026-09-09redhat
redhatrhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:17878015272026-09-08redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17883515782026-09-08redhat
redhatansible-automation-platform/automation-portal:17887757482026-09-08redhat
redhatansible-automation-platform/automation-portal:17887835912026-09-08redhat
redhatdevspaces/code-rhel9:17877627932026-09-01redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17877353342026-09-01redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17877445942026-09-01redhat

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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-tar6.1.13+~cs7.0.5-1 ... 7.5.22+~4.0.1-1 (22 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-tar6.2.1+ds1+~cs6.1.13-1 ... 7.5.22+~4.0.1-1 (18 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-tar6.2.1+ds1+~cs6.1.13-1 ... 7.5.19+~4.0.1-2 (16 versions)7.5.22+~4.0.1-1—
npm(1)
PackageVulnerable rangeFixed inDependents
tar—7.5.21—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 87× 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 106 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-73566?
CVE-2026-73566 is a high vulnerability published on August 13, 2026. node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A…
When was CVE-2026-73566 disclosed?
CVE-2026-73566 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73566 actively exploited?
CVE-2026-73566 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 68.2% of all scored CVEs.
What is the CVSS score of CVE-2026-73566?
CVE-2026-73566 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-73566?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73566, 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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