Vulnerability-Lookup

CVE-2026-9147 (GCVE-0-2026-9147)

Vulnerability from cvelistv5 – Published: 2026-07-18 12:46 – Updated: 2026-07-21 02:32

Title

uproot 5.7.4 and prior Code Injection via TStreamerInfo Metadata

Summary

uproot dynamically generates Python class source code from ROOT TStreamerInfo records in a file and compiles it at runtime. Some file-controlled streamer metadata fields (for example, streamer element names) are interpolated into the generated Python source without safe quoting via repr() or the !r format specifier. An attacker who can supply a crafted ROOT file can place Python expression-breaking content into a streamer metadata field. When uproot generates and invokes the corresponding reader method, the injected Python expression is evaluated in the context of the process opening the file, resulting in arbitrary Python code execution in applications that open or process attacker-controlled ROOT files with affected uproot code paths.

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

VulnCheck

References

4 references

URL	Tags
https://github.com/scikit-hep/uproot5/security/ad…	vendor-advisory
https://github.com/scikit-hep/uproot5/commit/c045…	patch
https://github.com/scikit-hep/uproot5	product
https://www.vulncheck.com/advisories/uproot-and-b…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
scikit-hep	uproot	Affected: 0 , ≤ 5.7.4 (git)

Date Public

2026-07-17 00:00

Credits

Sai Teja Erukude

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-9147

Vulnerability from fkie_nvd - Published: 2026-07-18 13:17 - Updated: 2026-07-21 04:16

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/scikit-hep/uproot5
	disclosure@vulncheck.com	https://github.com/scikit-hep/uproot5/commit/c045c2824295d907d2e705f31110c742928e50e7
	disclosure@vulncheck.com	https://github.com/scikit-hep/uproot5/security/advisories/GHSA-6946-mq52-g438
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/uproot-and-before-code-injection-via-tstreamerinfo-metadata

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "defaultStatus": "affected",
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    }
  ],
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  "lastModified": "2026-07-21T04:16:51.653",
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  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-98VV-9PQJ-G87V

Vulnerability from github – Published: 2026-07-18 15:31 – Updated: 2026-07-18 15:31

Details

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.5 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-9147"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-18T13:17:06Z",
    "severity": "HIGH"
  },
  "details": "uproot dynamically generates Python class source code from ROOT TStreamerInfo records in a file and compiles it at runtime. Some file-controlled streamer metadata fields (for example, streamer element names) are interpolated into the generated Python source without safe quoting via repr() or the !r format specifier. An attacker who can supply a crafted ROOT file can place Python expression-breaking content into a streamer metadata field. When uproot generates and invokes the corresponding reader method, the injected Python expression is evaluated in the context of the process opening the file, resulting in arbitrary Python code execution in applications that open or process attacker-controlled ROOT files with affected uproot code paths.",
  "id": "GHSA-98vv-9pqj-g87v",
  "modified": "2026-07-18T15:31:48Z",
  "published": "2026-07-18T15:31:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/scikit-hep/uproot5/security/advisories/GHSA-6946-mq52-g438"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9147"
    },
    {
      "type": "WEB",
      "url": "https://github.com/scikit-hep/uproot5/commit/c045c2824295d907d2e705f31110c742928e50e7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/scikit-hep/uproot5"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/uproot-and-before-code-injection-via-tstreamerinfo-metadata"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-9147 (GCVE-0-2026-9147)

FKIE_CVE-2026-9147

GHSA-98VV-9PQJ-G87V

Tags

Sightings

Nomenclature