---
id: CVE-2026-72742
title: >-
  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
  u…
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
  u…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-73
published: '2026-08-11'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:32:04.063'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72742'
references:
  - url: 'https://github.com/stanfordnlp/dspy'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/stanfordnlp/dspy/commit/c69136b29aca4c00ca6da7667f7b80783188980e
    label: disclosure@vulncheck.com
  - url: 'https://github.com/stanfordnlp/dspy/issues/10067'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/dspy-0b1-local-file-read-via-image-audio-output-field-parsing
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00508
epssPercentile: 0.40913
ingestedAt: '2026-09-24T20:51:40.194Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.