OSEC-2026-30: Ephemeron data is freed while still referenced when the key is an `Infix_tag` closure

Q: Which software is identified as affected?

The record identifies the software as opam/ocaml.

Q: Are affected versions or fixed versions specified?

No affected or fixed version ranges are provided in the supplied record.

Q: Is a mitigation available if patching cannot be performed immediately?

The supplied record does not provide a workaround, configuration mitigation, or detection guidance.

Published Nov 6, 2026

Updated

Affected Software

1 affected componentFixes available

opam/ocaml<4.14.5

4.14.5

Event History

Nov 6, 2026

Advisory Published

via OSV·12:30 PM

Data Sourced

via OSV·12:30 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which software is identified as affected?

The record identifies the software as opam/ocaml.

Are affected versions or fixed versions specified?

No affected or fixed version ranges are provided in the supplied record.

Is a mitigation available if patching cannot be performed immediately?

The supplied record does not provide a workaround, configuration mitigation, or detection guidance.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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