DSPy 3.3.0b1 Local File Read via Image/Audio Output Field Parsing (CVE-2026-72742) | HOL Guard CVE

High · CVSS 8.6CVE-2026-72742

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

Answer in brief

CVE-2026-72742 records a High severity (CVSS 8.6) vulnerability in DSPy 3.3.0b1 Local File Read via Image/Audio Output Field Parsing. The current sources do not mark it as known exploited. The current feed maps Stanford NLP/DSPy (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 11, 2026Updated Aug 12, 2026Source checked Sep 26, 2026First seen by HOL Aug 11, 2026Material review Aug 12, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.6
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Stanford NLP/DSPy (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Stanford NLP/DSPygeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Stanford NLP/DSPy.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 11, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.