Critical severity9.1NVD Advisory· Published Aug 17, 2026

CVE-2026-75106

Description

OpnForm derives editable-submission secrets from sequential row identifiers using Hashids with an empty default salt, allowing unauthenticated attackers to compute hashes for any submission. Attackers can read other respondents' full submission data through the submission-fetch endpoint or overwrite submissions by supplying predicted hashes to the answer endpoint.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

OpnForm/OpnFormllm-create

Patches

Vulnerability mechanics

References

github.com/OpnForm/OpnForm/commit/6c67ff0a9bc0ac27ae26b32b8e108a176f8161b1nvd
github.com/OpnForm/OpnForm/issues/1259nvd
github.com/OpnForm/OpnForm/releases/tag/v2.0.2nvd
www.vulncheck.com/advisories/opnform-editable-submission-secret-derivation-via-empty-hashids-saltnvd

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cvss	0.591
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000