CVE-2026-53598Published

Prompty: Arbitrary File Read via ${file:path} Reference Expansion

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

CVE-2026-53598

Exact risk observation. Current source statements above are a separate evidence layer. Latest risk evidence.

No KEV entry is attached to this observation; this is not evidence that exploitation is absent.

FIRST EPSS: 1.29 % · percentile 69.95 % · scored 26 Oct 2026.

Observed 27 Oct 2026 00:23:05 UTC · Complete immutable risk JSON

Immutable source observations

3 recorded revisions

Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.

25 Oct 2026 13:17:16 UTC

Prompty is a markdown file format (.prompty) for LLM prompts. Prior to 2.0.0-beta.2, Prompty loaders expanded ${file:...} references in .prompty frontmatter without enforcing that resolved paths stayed within the prompt directory or allowed…

nvd · CVE-2026-53598 · Published

23 Oct 2026 16:01:25 UTC

Prompty: Arbitrary file read via file reference expansion

osv · GHSA-wxhm-2mq7-7697 · Published

23 Oct 2026 15:48:27 UTC

Prompty: Arbitrary File Read via ${file:path} Reference Expansion

cve-program · CVE-2026-53598 · Published