CVE-2026-73412

MEDIUMPre-NVD 6.36.3
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (49th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-57525 (ENISA EUVD) · GHSA-6v4m-fw66-8r4x (GitHub Security Advisories)Source: ENISA EUVD

6.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 6.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, this impacts users of Shescape on Unix systems that explicitly configure shell to Zsh, or true when the default shell is Zsh, using the escape and escapeAll. The Zsh options EXTENDED_GLOB and MAGIC_EQUAL_SUBST exacerbate the problem. In certain case, an attacker can leverage home directory expansion and extended glob syntax to obtain lists of files and directories on the system. Depending on what the command does, this may be used to leak more information. This issue is fixed in versions 2.1.14 and 3.0.1.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity63% × 45%
Impact severity (EG Severity): CVSS 6.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
0.6%
EPSS %ILE
49th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.3): severity, escalated by confirmed exploitation. This CVE's 6.3 is its impact severity (EG Severity), not escalated.

EG Severity
6.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (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.

The score's inputs: 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

August 12, 2026

Last Modified

October 24, 2026

Advisory Details (7)

Auto-updated Aug 12, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

Release v3.0.1

Patch available: ericcornelissen/shescape v3.0.1

https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1
GitHub release Patch Available

Release v2.1.14

Patch available: ericcornelissen/shescape v2.1.14

https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14
GitHub commit Patch Available

commit b4b34c394e7f (ericcornelissen/shescape)

Patch available: ericcornelissen/shescape v2.1.14 (contains commit b4b34c394e7f)

https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425f
GitHub commit Patch Available

commit 43d70b59d09b (ericcornelissen/shescape)

Patch available: ericcornelissen/shescape v3.0.1 (contains commit 43d70b59d09b)

https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9de
GitHub pull request Patch Available

Improve overall escaping (v2)

Patch available: ericcornelissen/shescape v2.1.14 (PR #2651 merged 2026-07-22)

https://github.com/ericcornelissen/shescape/pull/2651
GitHub pull request Patch Available

Improve overall escaping

Patch available: ericcornelissen/shescape v3.0.1 (PR #2649 merged 2026-07-22)

https://github.com/ericcornelissen/shescape/pull/2649
GitHub advisoryMentions a patch (unverified)

Path disclosure on Unix with Zsh · Advisory · ericcornelissen/shescape · GitHub

https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6v4m-fw66-8r4x

Vendor Advisories for CVE-2026-73412(1)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmshescape @ 2.1.14 (fixes < 2.1.14)—ghsa
npmshescape @ 3.0.1 (fixes >= 3.0.0, < 3.0.1)—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)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
shescape—
  • every version up to 2.1.14: fixed in 2.1.14
  • 3.0.0 up to 3.0.1: fixed in 3.0.1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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 98 of 127 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 29 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  2. 2026-11-01 07:39 UTCGHSA enrichmentGHSA-6v4m-fw66-8r4x · GitHub severity MODERATE
  3. 2026-11-01 07:39 UTCEG score recompute
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  5. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  6. 2026-10-29 16:59 UTCEG score recompute
  7. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-10-25 14:05 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-10-23 19:32 UTCEG score recompute
  15. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-10-22 19:05 UTCEG score recompute
  17. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-10-18 03:15 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  23. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
Show 73 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  3. 2026-10-12 15:41 UTCEG score recompute
  4. 2026-10-11 19:26 UTCEG score recompute
  5. 2026-10-11 16:42 UTCEG score recompute
  6. 2026-10-11 14:01 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-10-06 14:12 UTCEG score recompute
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-10-03 19:56 UTCEG score recompute
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  18. 2026-10-02 08:18 UTCEG score recompute
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-09-30 21:53 UTCEG score recompute
  21. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-09-28 10:00 UTCEG score recompute
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-09-27 09:52 UTCEG score recompute
  26. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  27. 2026-09-25 03:39 UTCEG score recompute
  28. 2026-09-24 01:30 UTCEG score recompute
  29. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  30. 2026-09-23 01:22 UTCEG score recompute
  31. 2026-09-22 01:14 UTCEG score recompute
  32. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  33. 2026-09-21 01:06 UTCEG score recompute
  34. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  35. 2026-09-20 00:52 UTCEG score recompute
  36. 2026-09-19 00:40 UTCEG score recompute
  37. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  38. 2026-09-18 00:31 UTCEG score recompute
  39. 2026-09-17 00:17 UTCEG score recompute
  40. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  41. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  42. 2026-09-15 22:29 UTCEG score recompute
  43. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  44. 2026-09-13 22:00 UTCEG score recompute
  45. 2026-09-12 21:52 UTCEG score recompute
  46. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  47. 2026-09-11 21:44 UTCEG score recompute
  48. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  49. 2026-09-10 21:36 UTCEG score recompute
  50. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  51. 2026-09-09 06:50 UTCEG score recompute
  52. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  53. 2026-09-08 06:42 UTCEG score recompute
  54. 2026-09-07 05:50 UTCEG score recompute
  55. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  56. 2026-09-06 01:45 UTCEG score recompute
  57. 2026-09-05 01:33 UTCEG score recompute
  58. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  59. 2026-09-02 23:26 UTCEG score recompute
  60. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  61. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  62. 2026-09-01 11:39 UTCEG score recompute
  63. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  64. 2026-08-31 09:51 UTCEG score recompute
  65. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  66. 2026-08-30 08:40 UTCEG score recompute
  67. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  68. 2026-08-29 08:32 UTCEG score recompute
  69. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  70. 2026-08-27 19:35 UTCEG score recompute
  71. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  72. 2026-08-26 18:48 UTCEG score recompute
  73. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile

Frequently asked(5)

What is CVE-2026-73412?
CVE-2026-73412 is a medium-severity vulnerability; its CVE record was published on August 12, 2026. Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, this impacts users of Shescape on Unix systems that explicitly configure shell to Zsh, or true when the default shell is Zsh, using the escape and escapeAll. The Zsh options EXTENDED_GLOB and MAGIC_EQUAL_SUBST…
When was the CVE record for CVE-2026-73412 published?
The CVE record for CVE-2026-73412 was published on August 12, 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 October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-73412 actively exploited?
CVE-2026-73412 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73412?
CVE-2026-73412 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73412?
A fix for CVE-2026-73412 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73412 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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