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Rocq Prover through 9.2.0 Universe Checking State Desynchronised After Module Close

Type: advisorySource: Official CVE List1 source record

Rocq Prover does not restore the universe graph's copy of the universe checking flag when a module that locally disabled the check is closed. Local Unset Universe Checking inside a module is expected to last only until the module ends, and the global flag is restored, but the universe graph keeps its own copy which is left disabled. The two views then disagree: Test Universe Checking reports the check as enabled while the kernel continues to accept universe-inconsistent terms. With the constraint between two universes no longer enforced, Hurkens' paradox applies and yields a proof of False, from which any proposition follows. The proof uses no axioms, plugins or unsafe features once the module has closed, and Print Assumptions reports it as closed under the global context, so neither the assumption audit nor the flag query reflects the actual kernel state. No fix is available.

Announced Source revision 1
Original source ↗

CVE-2026-72714

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-72714

rocq

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/rocq-prover/rocq",
    "vendor": "rocq-prover",
    "product": "rocq",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "9.2.0"
      }
    ],
    "packageURL": "pkg:github/rocq-prover/rocq",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-72714

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#954 · Revision 1
Added to Heist Feed
Publisher date
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