CVE-2026-113719

MEDIUMPre-NVD 4.54.5
EchelonGraph scoreHIGH confidence

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

Score 4.5 from GitHub Security Advisory (severity: MODERATE) published 2026-10-23. A secondary CVSS source baseline 4.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-105300 (ENISA EUVD) · GHSA-hhxq-47xx-j5xx (GitHub Security Advisories)Source: ENISA EUVD

4.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, PipInstall._uninstall_previous_version() accepts existing seed-package metadata and _uninstall_dist() joins entries from top_level.txt and RECORD to site-packages without checking containment. When a reused destination contains distribution metadata influenced by another account, relative traversal, absolute entries, or linked parents can cause app-data reseeding to delete files outside the environment or the environment root with the invoking user's permissions, provided that user has deletion rights over the named paths. The deletion occurs during environment creation before any later use of the environment. Fresh environments without existing package metadata and creation with --clear do not enter this cleanup path. This issue is fixed in version 21.14.9.

CVSS v3
4.5
EG Score
4.5MEDIUMhigh confidence
EG Risk
36
EG Risk 36/100

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)
Severity45% × 45%
Impact severity (EG Severity): CVSS 4.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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
0.2%
EPSS %ILE
10th
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 (4.5): severity, escalated by confirmed exploitation. This CVE's 4.5 is its impact severity (EG Severity), not escalated.

EG Severity
4.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% 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 low or medium mission impact; Track* at high (mission-essential systems).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 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.

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

October 20, 2026

Last Modified

October 27, 2026

References (4)

Vendor Advisories for CVE-2026-113719(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
pipvirtualenv @ 21.14.9 (fixes < 21.14.9)—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)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
virtualenv0.8 ... 21.9.1 (304 versions)
  • every version up to 21.14.9: fixed in 21.14.9
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 20× 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.

  1. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  3. 2026-11-01 07:59 UTCGHSA enrichmentGHSA-hhxq-47xx-j5xx · GitHub severity MODERATE · GitHub CVSS 4.5
  4. 2026-11-01 07:59 UTCEG score recompute
  5. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  6. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  7. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  8. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  9. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-27 11:25 UTCEG score recompute
  11. 2026-10-27 11:05 UTCEG score recompute
  12. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-25 14:51 UTCEG score recompute
  15. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-22 17:08 UTCEG score recompute
  17. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-10-20 20:26 UTCEG score recompute
  19. 2026-10-20 19:49 UTCEG score recomputeFirst assessed: 4.5 MEDIUM
  20. 2026-10-20 19:46 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-113719?
CVE-2026-113719 is a medium-severity vulnerability; its CVE record was published on October 20, 2026. virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, PipInstall._uninstall_previous_version() accepts existing seed-package metadata and _uninstall_dist() joins entries from top_level.txt and RECORD to site-packages without checking containment. When a reused…
When was the CVE record for CVE-2026-113719 published?
The CVE record for CVE-2026-113719 was published on October 20, 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 27, 2026; the record at its source may have been updated since.
Is CVE-2026-113719 actively exploited?
CVE-2026-113719 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-113719?
CVE-2026-113719 has a CVSS base score of 4.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-113719?
A fix for CVE-2026-113719 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-113719 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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