CVE-2026-23745

MEDIUMNVD 6.16.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.4% (29th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
6.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.1Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100

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 (value × EchelonGraph’s weight)
Severity61% × 45%
The EG Score, 6.1 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
29th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

January 16, 2026

Last Modified

September 7, 2026

Advisory Details (2)

Auto-updated Jul 3, 2026
Patch available. Sources: github, github_commit.
GitHub commit

commit 340eb285b6d9 (isaacs/node-tar)

Fix landed in isaacs/node-tar commit 340eb285b6d9 — awaiting tagged release

https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e
GitHub advisoryMentions a patch (unverified)

Insufficient Link Path Sanitization · Advisory · isaacs/node-tar · GitHub

https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97

Vendor Advisories for CVE-2026-23745(9)

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

Patch Availability(9)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhmtc/openshift-migration-ui-rhel8:17836905322026-07-20redhat
redhatrhoai/odh-dashboard-rhel9:17791896272026-05-20redhat
redhatlinux-sgx-0:2.26-7.el102026-05-19redhat
redhatlinux-sgx-0:2.26-7.el92026-05-19redhat
redhatdevspaces/udi-rhel9:17744519542026-03-30redhat
redhatrhoai/odh-dashboard-rhel9:17720934242026-03-04redhat
redhatnetwork-observability/network-observability-console-plugin-rhel9:17712276502026-02-18redhat
redhatrhtas/rekor-search-ui-rhel9:17707390562026-02-18redhat
redhatrhtas/rekor-search-ui-rhel9:17701074522026-02-05redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
node-tar6.0.5+ds1+~cs11.3.9-1, 6.0.5+ds1+~cs11.3.9-1+deb11u1, 6.0.5+ds1+~cs11.3.9-1+deb11u2
  • every version up to 6.0.5+ds1+~cs11.3.9-1+deb11u3: fixed in 6.0.5+ds1+~cs11.3.9-1+deb11u3
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-tar6.1.13+~cs7.0.5-1
  • every version up to 6.1.13+~cs7.0.5-1+deb12u1: fixed in 6.1.13+~cs7.0.5-1+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-tar6.2.1+~cs7.0.8-1
  • every version up to 6.2.1+~cs7.0.8-1+deb13u1: fixed in 6.2.1+~cs7.0.8-1+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-tar6.2.1+ds1+~cs6.1.13-1 ... 6.2.1+~cs7.0.8-1 (6 versions)
  • every version up to 6.2.1+ds1+~cs6.1.13-6: fixed in 6.2.1+ds1+~cs6.1.13-6
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
tar—
  • every version up to 7.5.3: fixed in 7.5.3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 29× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 212 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 113 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  4. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  5. 2026-10-12 16:21 UTCEG score recompute
  6. 2026-10-11 20:03 UTCEG score recompute
  7. 2026-10-11 17:16 UTCEG score recompute
  8. 2026-10-11 14:47 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  15. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  16. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  17. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  18. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  19. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  21. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  22. 2026-09-27 04:45 UTCOSV refresh
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  24. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  25. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.4% · 29th percentile
Show 74 more
  1. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  2. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  3. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  4. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  6. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  7. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  8. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  9. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  10. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  11. 2026-09-07 14:07 UTCEG score recompute
  12. 2026-09-07 14:07 UTCVendor advisory
  13. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  14. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  15. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  16. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  17. 2026-09-01 12:25 UTCEG score recompute
  18. 2026-09-01 12:25 UTCVendor advisory
  19. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  20. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  21. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  22. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  23. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  24. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  25. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  26. 2026-08-25 12:23 UTCEG score recompute
  27. 2026-08-25 12:23 UTCVendor advisory
  28. 2026-08-24 13:32 UTCVendor advisory
  29. 2026-08-24 12:28 UTCEG score recompute
  30. 2026-08-24 12:28 UTCVendor advisory
  31. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  32. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  33. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  34. 2026-08-20 13:59 UTCVendor advisory
  35. 2026-08-20 12:46 UTCEG score recompute
  36. 2026-08-20 12:46 UTCVendor advisory
  37. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  38. 2026-08-19 12:28 UTCVendor advisory
  39. 2026-08-19 12:12 UTCEG score recompute
  40. 2026-08-19 12:12 UTCVendor advisory
  41. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  42. 2026-08-18 12:24 UTCEG score recompute
  43. 2026-08-18 12:24 UTCVendor advisory
  44. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  45. 2026-08-17 12:22 UTCVendor advisory
  46. 2026-08-17 12:14 UTCEG score recompute
  47. 2026-08-17 12:14 UTCVendor advisory
  48. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  49. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  50. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  51. 2026-08-14 13:51 UTCEG score recompute
  52. 2026-08-14 13:51 UTCVendor advisory
  53. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  54. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  55. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  56. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  57. 2026-08-10 13:22 UTCVendor advisory
  58. 2026-08-10 12:28 UTCVendor advisory
  59. 2026-08-09 19:26 UTCEG score recompute
  60. 2026-08-09 19:26 UTCVendor advisory
  61. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  62. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  63. 2026-08-08 00:21 UTCEG score recompute
  64. 2026-08-08 00:21 UTCVendor advisory
  65. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  66. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  67. 2026-08-05 12:46 UTCEG score recompute
  68. 2026-08-05 12:46 UTCVendor advisory
  69. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  70. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  71. 2026-08-03 13:44 UTCVendor advisory
  72. 2026-08-03 12:50 UTCVendor advisory
  73. 2026-08-02 23:06 UTCEG score recompute
  74. 2026-08-02 23:06 UTCVendor advisory

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCJvr2022/CVE-2026-23745
    Published Jan 17, 2026

    Proof of Concept for CVE-2026-23745: Arbitrary File Overwrite vulnerability in node-tar (versions < 7.5.3).

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-23745?
CVE-2026-23745 is a medium-severity vulnerability; its CVE record was published on January 16, 2026. node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File…
When was the CVE record for CVE-2026-23745 published?
The CVE record for CVE-2026-23745 was published on January 16, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 7, 2026; the record at its source may have been updated since.
Is CVE-2026-23745 actively exploited?
CVE-2026-23745 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23745?
CVE-2026-23745 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-23745?
A fix for CVE-2026-23745 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-23745 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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