CVE-2026-102937

HIGHPre-NVD 7.37.3
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (11th 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

Also known asEUVD-2026-89464 (ENISA EUVD) · GHSA-x78j-v8h9-3j2q (GitHub Security Advisories) · PYSEC-2026-4014 (OSV.dev)Source: ENISA EUVD

7.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, BatchActivator.quote() returns prompt text unchanged before activate.bat inserts it into a cmd.exe set "VAR=value" statement. An attacker who influences --prompt, VIRTUALENV_PROMPT, or the corresponding configuration value can include a double quote that closes the assignment and leaves following cmd.exe operators as executable syntax. When a user activates the generated Windows environment, the injected commands run with that user's privileges. This issue is fixed in version 21.7.12.

CVSS
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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)
Severity73% × 45%
Impact severity (EG Severity): CVSS 7.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
11th
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 (7.3): severity, escalated by confirmed exploitation. This CVE's 7.3 is its impact severity (EG Severity), not escalated.

EG Severity
7.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

September 29, 2026

Last Modified

October 2, 2026

Advisory Details (4)

Auto-updated Sep 29, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

21.7.12

Patch available: pypa/virtualenv 21.7.12

https://github.com/pypa/virtualenv/releases/tag/21.7.12
GitHub commit Patch Available

commit d721ff140ce4 (pypa/virtualenv)

Patch available: pypa/virtualenv 21.7.12 (contains commit d721ff140ce4)

https://github.com/pypa/virtualenv/commit/d721ff140ce4afdc2a9b76751e4584e25d9fbea6
GitHub pull request Patch Available

🐛 fix(activation): escape batch quote() against injection

Patch available: pypa/virtualenv 21.7.12 (PR #3250 merged 2026-09-18)

https://github.com/pypa/virtualenv/pull/3250
GitHub advisoryMentions a patch (unverified)

Command injection via --prompt in activate.bat (batch activator) · Advisory · pypa/virtualenv · GitHub

Affected: 21.7.12 by escaping the characters cmd.exe treats as live syntax inside this cons

https://github.com/pypa/virtualenv/security/advisories/GHSA-x78j-v8h9-3j2q

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatansible-automation-platform-26/eda-controller-rhel9:17919452822026-10-21redhat
redhatrhoai/odh-feature-server-rhel9:17921485232026-10-21redhat
redhatansible-automation-platform-27/eda-controller-rhel9:17921410102026-10-21redhat
redhatrhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:17918254692026-10-21redhat
redhatrhoai/odh-trustyai-nemo-guardrails-server-rhel9:17915561282026-10-19redhat
pipvirtualenv @ 21.7.12 (fixes <= 21.7.11)—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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
python-virtualenv20.17.1+ds-1 ... 21.5.1+ds-1 (33 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
python-virtualenv20.31.2+ds-1 ... 21.5.1+ds-1 (13 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
python-virtualenv20.31.2+ds-1 ... 21.5.1+ds-1 (12 versions)
  • every version on: no fix on record
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
virtualenv0.8 ... 21.7.9 (281 versions)
  • every version up to 21.7.12: fixed in 21.7.12
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 38× 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 its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-13 16:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  2. 2026-11-12 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  3. 2026-11-11 16:37 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  4. 2026-11-11 03:17 UTCEchelonGraph re-scored
  5. 2026-11-11 03:17 UTCVendor advisory
  6. 2026-11-11 03:17 UTCGHSA enrichmentGHSA-x78j-v8h9-3j2q · GitHub severity HIGH
  7. 2026-11-10 16:41 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  8. 2026-11-09 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  9. 2026-11-08 16:37 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  10. 2026-11-07 16:37 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  11. 2026-11-06 16:35 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  12. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  13. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  14. 2026-11-03 19:47 UTCEchelonGraph re-scored
  15. 2026-11-03 19:47 UTCVendor advisory
  16. 2026-11-03 19:47 UTCGHSA enrichmentGHSA-x78j-v8h9-3j2q · GitHub severity HIGH
  17. 2026-11-03 16:45 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  18. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  19. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  20. 2026-11-01 08:00 UTCGHSA enrichmentGHSA-x78j-v8h9-3j2q · GitHub severity HIGH
  21. 2026-11-01 08:00 UTCEchelonGraph re-scored
  22. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  23. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  24. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
Show 72 more
  1. 2026-10-27 20:36 UTCEchelonGraph re-scored
  2. 2026-10-27 20:36 UTCVendor advisory
  3. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  5. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-25 14:56 UTCEchelonGraph re-scored
  7. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-10-20 19:15 UTCEchelonGraph re-scored
  12. 2026-10-20 19:15 UTCVendor advisory
  13. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-10-18 05:10 UTCEchelonGraph re-scored
  17. 2026-10-17 19:48 UTCEchelonGraph re-scored
  18. 2026-10-17 19:48 UTCVendor advisory
  19. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-10-12 16:40 UTCEchelonGraph re-scored
  25. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-10-12 03:58 UTCVendor advisory
  27. 2026-10-11 20:15 UTCEchelonGraph re-scored
  28. 2026-10-11 18:28 UTCEchelonGraph re-scored
  29. 2026-10-11 15:08 UTCVendor advisory
  30. 2026-10-11 15:01 UTCEchelonGraph re-scored
  31. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  32. 2026-10-11 02:21 UTCEchelonGraph re-scored
  33. 2026-10-11 02:21 UTCVendor advisory
  34. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  35. 2026-10-10 13:23 UTCVendor advisory
  36. 2026-10-10 00:36 UTCEchelonGraph re-scored
  37. 2026-10-10 00:36 UTCVendor advisory
  38. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-10-09 11:50 UTCVendor advisory
  40. 2026-10-08 22:46 UTCEchelonGraph re-scored
  41. 2026-10-08 22:46 UTCVendor advisory
  42. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-10-08 10:00 UTCEchelonGraph re-scored
  44. 2026-10-08 10:00 UTCVendor advisory
  45. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  46. 2026-10-07 21:13 UTCVendor advisory
  47. 2026-10-07 08:27 UTCVendor advisory
  48. 2026-10-06 19:38 UTCEchelonGraph re-scored
  49. 2026-10-06 19:38 UTCVendor advisory
  50. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-10-06 06:46 UTCVendor advisory
  52. 2026-10-05 17:54 UTCEchelonGraph re-scored
  53. 2026-10-05 17:54 UTCVendor advisory
  54. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  55. 2026-10-05 05:09 UTCEchelonGraph re-scored
  56. 2026-10-05 05:09 UTCVendor advisory
  57. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  58. 2026-10-04 16:23 UTCVendor advisory
  59. 2026-10-04 03:37 UTCVendor advisory
  60. 2026-10-03 14:51 UTCEchelonGraph re-scored
  61. 2026-10-03 14:51 UTCVendor advisory
  62. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-10-03 02:05 UTCEchelonGraph re-scored
  64. 2026-10-02 13:18 UTCEchelonGraph re-scored
  65. 2026-10-02 12:46 UTCEchelonGraph re-scored
  66. 2026-10-01 21:20 UTCEchelonGraph re-scored
  67. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-09-30 19:45 UTCEchelonGraph re-scored
  69. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  70. 2026-09-29 21:21 UTCEchelonGraph re-scored
  71. 2026-09-29 21:05 UTCEchelonGraph re-scoredFirst assessed: 7.3 HIGH
  72. 2026-09-29 21:03 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-102937?
CVE-2026-102937 is a high-severity vulnerability; its CVE record was published on September 29, 2026. virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, BatchActivator.quote() returns prompt text unchanged before activate.bat inserts it into a cmd.exe set "VAR=value" statement. An attacker who influences --prompt, VIRTUALENV_PROMPT, or the corresponding…
When was the CVE record for CVE-2026-102937 published?
The CVE record for CVE-2026-102937 was published on September 29, 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 2, 2026; the record at its source may have been updated since.
Is CVE-2026-102937 actively exploited?
CVE-2026-102937 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (11th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-102937?
CVE-2026-102937 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-102937?
A fix for CVE-2026-102937 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-102937 are linked in the Vendor Advisories panel on this page.

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