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.
CVE-2026-73412
“—” 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.
Also known asEUVD-2026-57525 (ENISA EUVD) · GHSA-6v4m-fw66-8r4x (GitHub Security Advisories)Source: ENISA EUVD
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.3
- EG Score
- 6.3MEDIUMmedium confidence
- EG Risk
- 29EG 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, 2026Release v3.0.1
Patch available: ericcornelissen/shescape v3.0.1
https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1Release v2.1.14
Patch available: ericcornelissen/shescape v2.1.14
https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14commit b4b34c394e7f (ericcornelissen/shescape)
Patch available: ericcornelissen/shescape v2.1.14 (contains commit b4b34c394e7f)
https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425fcommit 43d70b59d09b (ericcornelissen/shescape)
Patch available: ericcornelissen/shescape v3.0.1 (contains commit 43d70b59d09b)
https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9deImprove overall escaping (v2)
Patch available: ericcornelissen/shescape v2.1.14 (PR #2651 merged 2026-07-22)
https://github.com/ericcornelissen/shescape/pull/2651Improve overall escaping
Patch available: ericcornelissen/shescape v3.0.1 (PR #2649 merged 2026-07-22)
https://github.com/ericcornelissen/shescape/pull/2649Path disclosure on Unix with Zsh · Advisory · ericcornelissen/shescape · GitHub
https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6v4m-fw66-8r4xVendor 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 / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| npm | shescape @ 2.1.14 (fixes < 2.1.14) | — | ghsa |
| npm | shescape @ 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)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| shescape | — |
| — |
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.
- 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-11-01 07:39 UTCGHSA enrichmentGHSA-6v4m-fw66-8r4x · GitHub severity MODERATE
- 2026-11-01 07:39 UTCEG score recompute
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-29 16:59 UTCEG score recompute
- 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-25 14:05 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-23 19:32 UTCEG score recompute
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-22 19:05 UTCEG score recompute
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-18 03:15 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
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- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-12 15:41 UTCEG score recompute
- 2026-10-11 19:26 UTCEG score recompute
- 2026-10-11 16:42 UTCEG score recompute
- 2026-10-11 14:01 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-06 14:12 UTCEG score recompute
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-03 19:56 UTCEG score recompute
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-02 08:18 UTCEG score recompute
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-30 21:53 UTCEG score recompute
- 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-28 10:00 UTCEG score recompute
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-27 09:52 UTCEG score recompute
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-25 03:39 UTCEG score recompute
- 2026-09-24 01:30 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-23 01:22 UTCEG score recompute
- 2026-09-22 01:14 UTCEG score recompute
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-21 01:06 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-20 00:52 UTCEG score recompute
- 2026-09-19 00:40 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-18 00:31 UTCEG score recompute
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- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-15 22:29 UTCEG score recompute
- 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-13 22:00 UTCEG score recompute
- 2026-09-12 21:52 UTCEG score recompute
- 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-11 21:44 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-10 21:36 UTCEG score recompute
- 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-09 06:50 UTCEG score recompute
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-08 06:42 UTCEG score recompute
- 2026-09-07 05:50 UTCEG score recompute
- 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-06 01:45 UTCEG score recompute
- 2026-09-05 01:33 UTCEG score recompute
- 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-02 23:26 UTCEG score recompute
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-01 11:39 UTCEG score recompute
- 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-31 09:51 UTCEG score recompute
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-30 08:40 UTCEG score recompute
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-29 08:32 UTCEG score recompute
- 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-27 19:35 UTCEG score recompute
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-26 18:48 UTCEG score recompute
- 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
Related CVEs(same product + same CWE)
Same product
10 shownnpm:shescape
Frequently asked(5)
What is CVE-2026-73412?
When was the CVE record for CVE-2026-73412 published?
Is CVE-2026-73412 actively exploited?
What is the CVSS score of CVE-2026-73412?
How do I remediate CVE-2026-73412?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73412
Is Your Infrastructure Affected by CVE-2026-73412?
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