CVE-2026-19245 (GCVE-0-2026-19245)

Vulnerability from cvelistv5 – Published: 2026-08-07 20:45 – Updated: 2026-08-10 13:30
VLAI
Title
HKUDS nanobot Login-shell Environment shell.py ExecTool._prepare_command information disclosure
Summary
A flaw has been found in HKUDS nanobot up to 0.2.1. The impacted element is the function ExecTool._prepare_command of the file nanobot/agent/tools/shell.py of the component Login-shell Environment Handler. Executing a manipulation can lead to information disclosure. The attack requires local access. The exploit has been published and may be used. Upgrading to version 0.3.0 is sufficient to resolve this issue. This patch is called 4525. The affected component should be upgraded. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "The report concerns shell startup files reintroducing environment variables when command execution defaults to a login shell. The default was changed so exec does not use a login shell unless explicitly requested".
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 13:30 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3855 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
HKUDS nanobot Affected: 0.2.0
Affected: 0.2.1
Unaffected: 0.3.0
    cpe:2.3:a:nanobot:nanobot:*:*:*:*:*:*:*:*
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Show details on NVD website

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              ],
              "url": "https://github.com/HKUDS/nanobot/pull/4525"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/HKUDS/nanobot/releases/tag/v0.3.0"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://github.com/HKUDS/nanobot/"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-08-07T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-08-07T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-08-07T14:13:01.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "HKUDS nanobot Login-shell Environment shell.py ExecTool._prepare_command information disclosure",
          "x_generator": [
            "VulDB PVTS v202608"
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-19245",
        "datePublished": "2026-08-07T20:45:12.889Z",
        "dateReserved": "2026-08-07T12:07:40.156Z",
        "dateUpdated": "2026-08-10T13:30:42.468Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.


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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.