CVE-2026-71492

MEDIUMPre-NVD 6.06.0
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (39th 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
Elevated
6.0EG
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: 0.5%CVSS: 6.0Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Banks generates meaningful LLM prompts using a simple template language. Prior to version 2.4.5, DirectoryPromptRegistry.set() in src/banks/registries/directory.py interpolates attacker-controlled Prompt.name and Prompt.version values into a Path without canonicalization or containment validation. Relative traversal such as ../victim/foo and an absolute Prompt.name can escape or discard the configured registry root, while overwrite=True permits replacement of existing target files. The poisoned name is persisted in index.json and reconstructed by _load(), allowing the out-of-root path to survive later registry loads. An application that forwards request data into these fields can therefore write Prompt.raw bytes to attacker-chosen paths writable by the application process. This issue is fixed in version 2.4.5.

CVSS v3
6.0
EG Score
6.0MEDIUMmedium 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)
Severity60% × 45%
The EG Score, 6.0 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
0.5%
EPSS %ILE
39th
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

August 20, 2026

Last Modified

September 18, 2026

Advisory Details (4)

Auto-updated Aug 20, 2026
Patch available. Sources: github_release, github, github_pr, github_commit.
GitHub release Patch Available

v2.4.5

Patch available: masci/banks v2.4.5

https://github.com/masci/banks/releases/tag/v2.4.5
GitHub commit Patch Available

commit a215f6d77996 (masci/banks)

Patch available: masci/banks v2.4.5 (contains commit a215f6d77996)

https://github.com/masci/banks/commit/a215f6d779966945c56e0af5abed1ae5916fd9d3
GitHub pull request Patch Available

fix: validate prompt paths in DirectoryPromptRegistry

Patch available: masci/banks v2.4.5 (PR #77 merged 2026-07-07)

https://github.com/masci/banks/pull/77
GitHub advisoryMentions a patch (unverified)

Path traversal in `DirectoryPromptRegistry.set()` allows arbitrary file write outside the registry root · Advisory · masci/banks · GitHub

https://github.com/masci/banks/security/advisories/GHSA-x8wg-4xgc-vr54

Vendor Advisories for CVE-2026-71492(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
banks0.0.1 ... 2.4.4 (35 versions)
  • every version up to 2.4.5: fixed in 2.4.5
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 48× 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. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-10-12 15:42 UTCEG score recompute
  4. 2026-10-11 19:28 UTCEG score recompute
  5. 2026-10-11 16:43 UTCEG score recompute
  6. 2026-10-11 14:03 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  11. 2026-10-08 05:28 UTCEG score recompute
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-10-07 03:53 UTCEG score recompute
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-10-06 03:28 UTCEG score recompute
  16. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  17. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-10-03 16:48 UTCEG score recompute
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-10-02 09:12 UTCEG score recompute
  21. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-10-01 08:41 UTCEG score recompute
  23. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-09-30 08:17 UTCEG score recompute
  25. 2026-09-29 04:15 UTCEG score recompute
Show 63 more
  1. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-09-28 03:50 UTCEG score recompute
  3. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  4. 2026-09-27 03:17 UTCEG score recompute
  5. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-09-25 00:42 UTCEG score recompute
  7. 2026-09-23 22:25 UTCEG score recompute
  8. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-09-22 22:01 UTCEG score recompute
  10. 2026-09-21 21:36 UTCEG score recompute
  11. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-09-20 21:10 UTCEG score recompute
  13. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  14. 2026-09-19 20:45 UTCEG score recompute
  15. 2026-09-18 20:20 UTCEG score recompute
  16. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  17. 2026-09-18 10:40 UTCEG score recompute
  18. 2026-09-17 10:09 UTCEG score recompute
  19. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  20. 2026-09-16 09:44 UTCEG score recompute
  21. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  22. 2026-09-15 08:55 UTCEG score recompute
  23. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  24. 2026-09-14 08:30 UTCEG score recompute
  25. 2026-09-13 08:05 UTCEG score recompute
  26. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  27. 2026-09-12 07:41 UTCEG score recompute
  28. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  29. 2026-09-11 07:13 UTCEG score recompute
  30. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  31. 2026-09-09 06:24 UTCEG score recompute
  32. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  33. 2026-09-07 05:34 UTCEG score recompute
  34. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  35. 2026-09-06 05:08 UTCEG score recompute
  36. 2026-09-05 04:43 UTCEG score recompute
  37. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  38. 2026-09-03 03:47 UTCEG score recompute
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  40. 2026-09-02 03:13 UTCEG score recompute
  41. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  42. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  43. 2026-08-31 02:19 UTCEG score recompute
  44. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  45. 2026-08-30 01:53 UTCEG score recompute
  46. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  47. 2026-08-29 01:29 UTCEG score recompute
  48. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  49. 2026-08-27 20:36 UTCEG score recompute
  50. 2026-08-26 20:11 UTCEG score recompute
  51. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  52. 2026-08-25 19:37 UTCEG score recompute
  53. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  54. 2026-08-24 19:12 UTCEG score recompute
  55. 2026-08-23 18:48 UTCEG score recompute
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  57. 2026-08-22 18:24 UTCEG score recompute
  58. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  59. 2026-08-21 17:59 UTCEG score recompute
  60. 2026-08-20 17:34 UTCEG score recompute
  61. 2026-08-20 17:17 UTCEG score recompute
  62. 2026-08-20 16:17 UTCEG score recomputeFirst assessed: 6.0 MEDIUM
  63. 2026-08-20 16:16 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-71492?
CVE-2026-71492 is a medium-severity vulnerability; its CVE record was published on August 20, 2026. Banks generates meaningful LLM prompts using a simple template language. Prior to version 2.4.5, DirectoryPromptRegistry.set() in src/banks/registries/directory.py interpolates attacker-controlled Prompt.name and Prompt.version values into a Path without canonicalization or containment validation.…
When was the CVE record for CVE-2026-71492 published?
The CVE record for CVE-2026-71492 was published on August 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 September 18, 2026; the record at its source may have been updated since.
Is CVE-2026-71492 actively exploited?
CVE-2026-71492 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71492?
CVE-2026-71492 has a CVSS base score of 6.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71492?
A fix for CVE-2026-71492 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71492 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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