Vulnerability-Lookup

CVE-2026-72742 (GCVE-0-2026-72742)

Vulnerability from cvelistv5 – Published: 2026-08-11 18:50 – Updated: 2026-08-12 16:58

Title

DSPy 3.3.0b1 Local File Read via Image/Audio Output Field Parsing

Summary

DSPy 3.3.0b1 contains a file exfiltration vulnerability in the Image and Audio output field adapters that allows attackers with influence over language model outputs to read arbitrary local files by injecting a filesystem path into the url field of a parsed Image or Audio typed output. The JSONAdapter and ChatAdapter parse untrusted language model completions through parse_value into TypeAdapter validation, which triggers encode_image or encode_audio to read and base64-encode any local file path via the os.path.isfile branch in image.py and audio.py, subsequently embedding the file contents into outgoing prompt messages sent to the attacker-controlled model endpoint.

Severity

9.2 (Critical)


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

8.6 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-12 16:05 UTC

CWE

CWE-73 - External Control of File Name or Path

Assigner

VulnCheck

References

4 references

URL	Tags
https://github.com/stanfordnlp/dspy	product
https://github.com/stanfordnlp/dspy/issues/10067	issue-tracking
https://github.com/stanfordnlp/dspy/commit/c69136…	patch
https://www.vulncheck.com/advisories/dspy-0b1-loc…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Stanford NLP	DSPy	Affected: 0 , ≤ 3.3.0b1 (custom)

Date Public

2026-08-11 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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GHSA-VG2P-RF25-4WRX

Vulnerability from github – Published: 2026-08-11 21:33 – Updated: 2026-08-11 21:33

Details

Severity

8.6 (High)


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

9.2 (Critical)


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

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2026-72742"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-73"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T19:18:49Z",
    "severity": "CRITICAL"
  },
  "details": "DSPy 3.3.0b1 contains a file exfiltration vulnerability in the Image and Audio output field adapters that allows attackers with influence over language model outputs to read arbitrary local files by injecting a filesystem path into the url field of a parsed Image or Audio typed output. The JSONAdapter and ChatAdapter parse untrusted language model completions through parse_value into TypeAdapter validation, which triggers encode_image or encode_audio to read and base64-encode any local file path via the os.path.isfile branch in image.py and audio.py, subsequently embedding the file contents into outgoing prompt messages sent to the attacker-controlled model endpoint.",
  "id": "GHSA-vg2p-rf25-4wrx",
  "modified": "2026-08-11T21:33:08Z",
  "published": "2026-08-11T21:33:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72742"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stanfordnlp/dspy/issues/10067"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stanfordnlp/dspy/commit/c69136b29aca4c00ca6da7667f7b80783188980e"
    },
    {
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      "url": "https://github.com/stanfordnlp/dspy"
    },
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      "url": "https://www.vulncheck.com/advisories/dspy-0b1-local-file-read-via-image-audio-output-field-parsing"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
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      "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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-72742 (GCVE-0-2026-72742)

GHSA-VG2P-RF25-4WRX

Tags

Sightings

Nomenclature